Letshuoer Cadenza 4

Disclaimer:
This is my friend unit, impressions are strait otta what I felt and I spent less time with them so you can take it easy.
My preferred sound:
neutral sound but with musical presentation(this describes itself not nuetral ). slight emphasis on bright or warm both works for me
equipment:
spinfit w1 tips and cyan ru7 dac/amp

sound:
soothing, melodic, musical presentation
bass:
It has nice sub-bass with good presence of rumble, mid-bass is adequate (little less compared to sub-bass) but
that doesn't mean it lacking either it is sufficient to balance other frequencies.
and I do find bass is little mellow/soft slam not the tightest, but attack/decay is still good though.
kick drums bass reproduce good however I would have appreciated if it has more slam.

Mid-range:
Not sure where to start but I found midrange to be one of the best I’ve heard in the price point.
vocals are clean and little forward, everything sounds engaging. male vocals got that weight and lushness, and female vocals sounds exquisite with crispness
guitar, violin, Saxaphone and trumpets sounds phenomenal with good layering.
had plenty of room for both vocals and mid-range instruments.
All if I can say about midrange in simple words, it sounds very emotional.

Treble:
treble is inoffensive/little relaxed yet still has good energy without any splashiness.
I played some busy tracks and it handled all of them without any struggles and never sounded grainy at all

Technicalities:
I wouldn’t say that the soundstage of the Cadenza 4 is huge but there is definitely enough room for all instruments.
It is above average, height, width and it has very good depth though
it has good micro and excellent macro details.
it has excellent tonality and timber.

TLDR version on YouTube: TDLR - Letshuoer Cadenza 4

The Cadenza 4 have been sent to me directly by Letshuoer for me to try them out and share my opinions in this review. Letshuoer have not made any specific comments or requests and I will do my best, as always, to be as unbiased in this review as possible.

You can find the official page for the Cadenza 4 here: https://letshuoer.net/products/letshuoer-cadenza4-wired-iem-hifi-earphones-in-ear-monitor

As with all links I share, this is a non-affiliate link.

To avoid being repetitive in my reviews, you can find all the info about how I create the reviews, equipment used, how I receive the products and how to interpret my reviews by visiting: About my reviews



Intro…

The Cadenza 12 was released as both the flagship IEM of the brand and the first in what was said to be a series of IEMs, the Cadenza. This was early in 2023, with a prototype making its rounds at Canjam quite a few month before that. While I didn’t get to spend a lot of time with the Cadenza 12, I did get to try it out and I have to say that it was my favourite IEM from the brand, although a little bright.

A year later, Letshuoer presents us with the second IEM in the Cadenza line up, this time at a much more affordable level (for most of us), priced at under $250, or $229 for those who pre-ordered, which is around 230€, that is a rather large difference from the 2000€ price tag of the flagship model. While the Cadenza 12 featured 12 drivers, the Cadenza 4 coincidentally (or not) features 4 drivers, that are a dynamic driver plus 3x balanced armature drivers.

So, let’s take a look at what we are getting from the brand for the much more pocket friendly price point of their new model.



Presentation…

The packaging and contents of the Cadenza 4 are certainly nothing to complain about in the price range, in fact, they are very similar to the presentation of the S15 that I reviewed not long ago and comes in at almost $100 more expensive.

The same grey outer sleeve, featuring just the make and model, with some basic specs on the back, slides away to reveal an even simpler flip top box in the same colour with “Letshuoer - Sound Alive” on the top in small white letter. This outer packaging is simple and elegant.

The flip top box is held closed with magnets and opens in the same “jewelry box” type way as that of the S15. There is a top layer, covered by a grey card envelop containing the user manual and other documentation, which is removed to reveal the IEMs sitting underneath.

The bottom half of the box is a slide out drawer accessed from the front that contains the rest of the accessories, which are a black screw top storage/transport case, the cable with interchangeable connectors, 2.5mm, 3.5mm & 4.4mm connectors for the cable and the disc style tip holder containing “balanced” and “vocal” tips, 3 sets of each.

The only real difference between the presentation of the Cadenza 4 and the S15 is the colour of the cable and the colour of the “vocal” ear tips, which are grey rather than blue.

I have nothing but praise for the presentation and accessories included with the Cadenza 4, making it a nice box opening experience and giving a feeling of a set that has been cared for.



Build and aesthetics…

While the Cadenza 4 do share a similar shape to the Cadenza 12, this is as far as the similarities go in build. Where the flagship is a completely metal shell, the Cadenza 4 opts for a 3D printed shell with a CNC machined faceplate in aluminium with a matte finish. The shells are white which leads to a very elegant looking set of IEMs that are not overly shouty but look, and feel, to be of good quality.

The 3D printed shell also helps to reduce weight, with the Cadenza 4 being a very lightweight and comfortable IEM, at least in my ears.

The included cable, stated as being a 392 strand silver plated copper, matches the aesthetics of the IEMs, with white and matte aluminium hardware that also matches the aesthetics. While I am someone who prefers fabric covered cable personally, there is no doubt that the included cable is of good quality and, as it includes all the termination options you may need, it is a perfect match for the IEMs.



Sound…

All tracks mentioned are clickable links that allow you to open the reference track in the streaming service of your choice (YouTube, Tidal, Qobuz, Spotify, etc.)

I am not going to make any comparisons in sound between the two Cadenza models as, on one hand, they are in totally different leagues, and on the other, I only briefly listened to the 12 in show conditions last year, so I cannot faithfully make any comparisons.

I will say that this is the 5th set of Letshuoer IEMs that I have reviewed, having tried a fair few more, and that each of their models has a different flavour to it, none of which I have hated. In fact, I have quite liked them and the Cadenza 4 is no exception. In fact, it may actually be my favourite tuning from the brand yet. It is certainly not perfect, to me at least, but the issues that I do find are fairly small and are lost in the overall performance of the IEM.

Anyway, I am getting ahead of myself, so lets go through my usual steps and start off looking at the graph in comparison to my personal preference target:



Before getting into the specifics, let me say that I found that I preferred the “Vocal” tips (the grey ones) for the Cadenza 4 and those are what I have been using for my detailed listening in this review. There is a sensation of more bass with the “Balanced” option but I found that the bass with the “Vocal” tips was plenty for my tastes.

In the subbass range and focusing first on “Chameleon”, there is enough rumble in the lower frequencies to appreciate the madness of this track, with a nice deep extension. However, the subbass is clean and not really boosted too much (enough for my tastes but maybe not enough for others that prefer more rumble), keeping this articulate a giving a very nice presentation of these lower ranges.

With “No Sanctuary Here”, which is not as overpowering in the subbass department, I find a very nice balance between subbass and midbass, with no real emphasis on either of them, with the low end of this song sounding very clear and decisive.

Moving into the midbass zone and using my midbass fatigue track “Crazy”, there is no sensation of the low end reverb becoming overpowering. It is noticeably there but does not hijack any of the surrounding frequencies, allowing the guitar to present those low end notes without becoming overly boomy.

While the midbass may be a little lower in quantity than many will expect, I find that it is really well balanced and does not give the sensation of missing any warmth in bass guitars, such as in “Elephants on Ice Skates” or in older rock tracks that usually benefit from a bit of extra warmth, such as “Whole Lotta Love”, where the bass guitar has a tonality to it that I find both pleasing and correct, at least to my ears.

Throughout the whole of the bass zone, details are good and I find they get even better as we move into the midrange of the Cadenza 4. In very simple tracks, such as “Happens To The Heart”, the details of the track, such as the breathing and slight vibration of instruments, are easily appreciated while the vocals remain full. In busier tracks, such as “The Room” by Ostura, the Cadenza seemingly keep up without any issues, again letting the details of each instrument shine through but without them being overly upfront.

As we climb into the upper mids, there is plenty or presence for both vocals and instruments, although some tracks can come across a little harsh in this recording. For example, “Crazy” that I mentioned earlier, can have a little too much emphasis on the vocals of Daniella Andrade and even a slight hint of sibilance. This is reduced by switching to the balanced tips, which moves the emphasis away slightly and places it a bit more on the lower ranges. However, it is not terribly harsh, unless you are someone sensitive to the 2.5 to 3.5k region, and I personally prefer the response of the “Vocal” tips.

As we move into the higher regions, there is a nice sensation of air and extension which maintains sibilance in tracks like “Code Cool” at a point I would consider neutral. In other words, it does not add or subtract sibilance to/from Patricia Barber.

The treble extension may not be the most extended treble out there but Letshuoer have done a good job of balancing the treble, allowing it to sound open and airy without sounding overly emphasized, harsh or too bright.

I already said that details are good throughout the whole range and this is added to a nice sensation of space between layers of vocals and instruments, as in the recording of “Strange Fruit”, where background details are noticeable and spacing between the vocal layers are well defined.

I wouldn’t say that the soundstage of the Cadenza 4 is huge but there is definitely enough room for instruments to spread out, although I find that in “La Luna”, the rear left guitar is pushed slightly more left and less back than on other sets. This doesn’t make for a worse presentation of the track, just different.



Conclusion…

The Letshuoer Cadenza 4 are a very impressive set of IEMs. As I mentioned earlier in the review, they may even be my favourite set from the brand so far. There are certain tracks that can become a little hot in the upper mids with the “Vocal” tips but this can be remedied quite well with the “Balanced” tips. I found that I could enjoy them even more with a couple of other aftermarket tips but I usually don’t go into aftermarket accessories in my reviews and try to focus on the included.

For the 230€ price point, you are getting a nicely built set of IEMs, that sounds good, performs well and is also presented in a way that I would say is above the majority of the competition in packaging and accessories.

These probably won’t be the correct choice for those looking for a bassy set of IEMs but for those who are looking for a good, balanced and well performing set of all-rounders, the Cadenza 4 are a very good candidate.

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As always, this review is also available in Spanish, both on my blog (www.achoreviews.com) and on YouTube (www.youtube.com/achoreviews)

All FR measurements of IEMs can be viewed and compared on achoreviews.squig.link

All isolation measurements of IEMs can be found on achoreviews.squig.link/isolation

About Cadenza 4.

Letshuoer, the parents of the hugely popular planar IEM the S12 have a new baby for us.

Letshuoer provided this review sample to Audio Reviews Downunder for our honest assessment, and we would like to thank them.

Cadenza 4 is a 1 DD 3BA hybrid. The company also has the Cadenza 12 which is a 1DD 11BA flagship IEM. Cadenza definition: Technically brilliant sometimes improvised solo passage toward the close of a concerto.

In the box we have the IEMs which I find understated and elegant. A lot is made of the look of an IEM but once they are in your ears…out of sight, out of mind!

The cable is just great, Soft and substantial with a great feel, left and right marked pin connectors and modular at the other end with the three usual sized male connectors. This is one of the first cables I have not been tempted to change with some of my collection. Also included is a hard plastic round case with a screw cap. Solid and durable it also feels quite soft and tactile. Just don’t let the dog get hold of it!

The supplied tips are average and below par compared to those supplied with the dearer S15 planar.

The fit of the Cadenza works well for my ears. The body is molded and shaped to the ear cavity as opposed to a simple cone shape. (It is similar to the Kinera range) This gives me a good fit with my ear shape and has the advantage of good noise isolation.

Drivability was good. I used my Hiby R3 Saber DAP with high gain and while a volume level of 36 (which is average for an easy to drive IEM) gave a good sound level, I found the Letshuoer scaled well when I boosted the volume into the 40’s. The music grew in power and grandeur without any corresponding harshness or distortion. Similar to the way my Hidizs MP145 planar performs.

The Sound

Remember these are my impressions and may not relate to all ears or ear canals!

When you first listen to Cadenza 4 you should be impressed by the superb balanced and musical presentation. This set is the best hybrid I have spent time listening to this year. Every part of the sound spectrum is presented so correctly that you just get lost in the music and forget to analyze! In this way it compares favorably to my number one set, namely the Hidizs MP145. Usually, I keep the MP145 tacked away when I am assessing a new IEM but in this case the Cadenza demanded “get the Hidizs out…I can take it! “

Starting with the bass, the kick drums do kick with a visceral punch that you can feel. Drumsticks tapped on the side of the snare are tactile and realistic. Sub bass is omnipresent in just the right amount without overpowering the Mids. Bass guitars have weight and depth and upright basses sound deep and realistic with real gravitas.

The midrange is spacious and uncongested with good tone and some warmth. Vocals are presented just right, neither to forward or recessed. Acoustic guitars sound realistic and detailed. Female vocals are rather delicious, natural and captivating. Male vocals have correct timbre and tone to my ears. My most problematic close miked vocal tracks that can sound harsh and troubling with some tunings, survived analysis nicely.

The treble has energy and clarity and is never overdone. Once again, we get back to the balanced sound of the Cadenza. Sure, it could have more sparkle, but would it dominate the mix? To me, it sounds just right.

Soundstage and technicalities now. The soundstage has good width and depth and I rate it as above average. Imaging is very good with Cadenza and placement of instruments within the soundstage is easy and accurate. Detail retrieval, while not TOTL is also adequate to my ears with plenty of small nuances and minutiae audible. Put it all together and you have a seamless symphony of sound.


To sum up.

Did Cadenza 4 surpass my Hidizs MP145 as my favorite? Close but no. I still love the planar. But the Letshuoer takes it place as one of the best balanced and musical listening IEMs I have auditioned. It gets my strong recommendation

The Letshuoer Cadenza 4 is an intriguing set of hybrid in-ear monitors (IEMs). Let’s dive into its specifications and features:

Price: The Cadenza 4 is priced at $229.
Design and Unboxing Experience:
The unboxing experience is classy, reminiscent of the more expensive S15 model.
The earphones come in a multi-level box with a magnetic clasp.
Inside, you’ll find a plastic travel case, a high-quality cable (made of high-purity silver-plated monocrystalline copper), and various eartips.
The earphones themselves are made of 3D printed resin with a CNC-milled aluminum faceplate, finished in a matte texture.
The design ensures a comfortable fit for the average human ear.
Sound Quality:
The Cadenza 4 aims for a non-reference / non-offensive sound with a deep but balanced sub-bass rumble, tame neutral Mid-Bass and smoothly detailed highs with a fair extension. The Midrange is unique as it has a forward but centered placement and while not the most detailed it has a very neat response with a thinner than average note weight but still has a nice warm and rich sound I find pleasant.
Soundstage is slightly above average in size and has decent but average imaging.
It uses a four-driver array for its frequency response.
Drivers:
10mm beryllium-coated dynamic driver (DD): Provides natural sound and spacious low-frequency reproduction.
1 Sonion balanced armature (BA): Contributes to the overall sound signature.
2 Knowles balanced armatures (BA): Enhance clarity and detail2.

In summary, the Letshuoer Cadenza 4 offers an enjoyable and safe sound quality, with very good accessories at a reasonably accessible price point, making it a strong contender in its category as it is a safe tuned IEM that goes well with multiple genres of music.

Gear used for the review are the ifi Diablo-2 and ifi Gobar Kensei , the Surfans F28, and Tempotec V6

Letshuoer Cadenza 4 Review​

Full Review HERE

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Letshuoer Cadenza 4​

Intro​

Hello, today I have with me the latest iem to grace the market from the very popular audio brand Letshuoer, named the Letshuoer Cadenza 4. The Cadenza 4 is actually a four-driver hybrid which consists of one dynamic driver and three balanced armature drivers, but more on that later. Folks, I have been a fan of Letshuoer for quite some time and have owned a number of their iems and one thing I feel that I can say with complete conviction is that Letshuoer is only getting better. While other brands rest on their laurels and stop trying to innovate and create, Letshuoer is doing the exact opposite. They use different driver configurations, a unique company to partner with in “HeyGears” and some of the best tuning that we’ve seen over the course of the last three to four years.

Good history with this brand​

I’ve reviewed a few of their iems but have owned many more and each one I’ve been extremely happy with. Not that any of you asked. However, I reviewed and gave high marks for the Letshuoer S12 Pro (S12 Pro Review). Truly one of the best planar magnetic earphones that money can buy for under $150. I reviewed one of the better iems under $100 for vocals and simply great timbre in the Letshuoer DZ4 (DZ4 Review), and finally I reviewed the Letshuoer S15 (S15 Review) just last year. The S15 is my favorite planar iem… period. All of these sets mark some of my favorites in their price point. Something about this brand’s ability to tune and craft sets that have a rich and fun timbre without lacking in the technical stuff is flat-out intriguing. Truly they are fantastic at their craft.

Letshuoer​

Letshuoer was actually founded as “Shuoer Acoustics” back in 2016 by Jeff Wong & Danny To. From what I can see, they only seek out the best in the field to work on their products and it seems as though they are quite proud of their team. Letshuoer has a long history of bringing some very well beloved iems to market. We’ve seen sets like the Cadenza 12 which has been lauded in the community. There’s also sets like the EJ07, EJ07M, EJ09, which all fall into the high-end price point. Of course, Letshuoer has also done very well in the budget space starting with their Letshuoer Singer, Letshuoer Tape, Letshuoer Tape Pro as well as some of the most loved planar iems you can find. Sets like the Letshuoer S12, S12 Pro, Z12, S15 and more. I also really enjoy the Letshuoer D13 which is also a low-cost example of a fantastic single DD under $100, and finally the Letshuoer DZ4, as I mentioned earlier. Folks, all of these iems are well thought out, well built, well designed and well-tuned to the target sound that Letshuoer was going for. It’s safe to say that Letshuoer has built somewhat of a dynasty, and I’m all for it.

Tough competition​

There is a huge swath of iems that sit within the $200 to $300 price point that the Cadenza 4 fights against for your dollar. To be honest, this seems to be the one thing which holds most sets back. My biggest question and concern for the Cadenza 4 is if it can stand next to some of the greats in this revered price point. Well, I suppose that there’s only one way to find out. Let’s take a look at the Cadenza 4 friends…

Non-Affiliated Purchasing Link’s:​

-Letshuoer.net

Disclaimer:​

I received the Letshuoer Cadenza 4 from Letshuoer as a review sample and in exchange I will conduct a full review and feature at Mobileaudiophile.com. I have not received any payment or any other form of compensation for this review. This set is a review sample iem. Letshuoer has not requested to pre-read any review and doesn’t have any control over “what” or “when” anything gets published to mobileaudiophile.com. All thoughts within this review are my own, though please take note that I will always have my own biases. This is impossible to get around. I try to be as objective as my subjective self can be, but this is an opinion piece folks. Thank you to Letshuoer and thanks for reading.

Gear used for testing​

–Ifi Go Blu

–Aful SnowyNight

–EPZ TP50

–Fiio Q15

–iBasso DX240 with Amp8 MK2

–Shanling M6 Ultra

Packaging / Accessories​

Unboxing​

I love a good unboxing folks. Always have. Even if it lasts a short moment and is gone. Just a small shot of dopamine, I’ll take it. Thankfully Letshuoer knows how to package their iems in a way which shows them off. Also, they have such a cool way of doing so. First off, the Cadenza 4 comes in an average sized rectangular box; roughly 6” x 4” x 3”. The box has a sleeve which showcases their Logo, a neat design and some specs. If you look at the pics you can see that it’s hard to describe. It’s a neat, clean, and Apple-esque in its presentation. Anyways, slip off the sleeve and you are met with the actual box. Open that box and you’ll see an envelope with some reading material (that I won’t talk about now). Under that you’ll come to the earphones themselves sitting in cardboard covered foam cutouts. Next is the cool part. Just like the unboxing for the S15, the Cadenza 4’s box has a cool little drawer at the bottom. Pull the fabric drawer handle and you open up to the case on the left and the modular connections on the right. Inside the case are the tips and the cable. This is certainly one of the more unique and inventive unboxing experiences. Nice work Letshuoer!

Eartips​

Inside the case you’ll find the eartips which are stuck on tabs on this round holder of sorts. The tips provided are of pretty good quality though I can tell you right away that I didn’t use them for my review. The first set (S, M, L) is a white shallow fit silicone eartip with a wide bore set with a flimsy flange. They drop down the low-end a bit too much and really pushes the upper mids/lower treble area for me. Not my favorite. The next set is a narrow bore set (S, M, L) that is able to insert a bit deeper and is semi rigid at the flange. I simply don’t get the seal I need with either of these tips. I actually went with the Letshuoer S15’s blue wide-bore tips in large. They seem to do everything I need them to sonically and fit like a glove. Honestly, if the included tips actually seal for you then I’d say you are good to go, and they are of decent quality.

Carrying Case​

The carrying case which comes included in the packaging of the Letshuoer Cadenza 4 is a hard plastic hockey puck shaped case with screw on threads. The plastic has that very cool feeling soft rubber coating over hard plastic. I’m sure some will feel that this material isn’t up to the price, but I completely beg to differ. This material has almost a soft texture to it, and it feels about as nice as plastic can feel. The size is great in that I can put the earphones, cable, tips, and possibly a small dongle dac as well (I haven’t tried to fit a dongle dac) inside and the top simply screws down nice and easy. This is actually almost identical to the carrying case which came with the Letshuoer S15. Perfect for throwing into a bag or even putting in a pocket without any worry whatsoever. Obviously, we’ve seen more elegant cases provided with iems. On the flip, we’ve also seen far worse from iems that were much more expensive. So, take that for what you will. Not a bad case by any stretch.

Cable​

One of my favorite aspects of the whole Cadenza 4 package is the cable. It’s a gorgeous white cable, it’s thick, it’s modular as well. Really, a well-designed wire folks. The white is almost glossy, and the braid, or twist, is awesome in appearance. I love a fat cable, it just makes my iems look that much better, and when they color match… now we’re talking. Anyways, the cable is a 2-pin, made using silver plating over high purity monocrystalline copper and 392 strands. Furthermore, the bonus is that this cable is also modular, coming equipped with 3.5, 2.5, & 4.4 right angle modular jacks. I also like that they used stainless steel (I believe) strain reliefs and 2-pin fittings and every other fitting as well. It’s a slick design and a great addition. The modular Jack’s tightly push onto the connector and are very firm and fitted perfectly. I do get the most minimal microphonic sounds when rubbing on my shirt. However, that is almost not worth mentioning because it is so faint. Thankfully I don’t have to purchase an extra cable. So, there’s that.

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Build / Design / Internals / Fit​

Build Quality​

The build will either be something that is a very nice to you, or it will be something that isn’t. Some people have issues with Letshuoer’s use of HeyGears materials. I actually really like HeyGears build quality and feel that it only adds to the Cadenza 4, but I can see why others don’t like it as much. However, I’m speaking to those who do. The build is fantastic with that semi-soft, yet dense plastic formed by way of 3D printing. Inside there are also 3D printed acoustic tubing which are perfectly aligned to the drivers. In fact, everything internally is built in this method, the chassis, the casing for the drivers, the tubes, vents, the whole nine yards. This method ensures precise control over the acoustic cavity everytime. The faceplates are crafted by way of CNC machined aluminum with a cool textured matte finish. Also, the Cadenza 4 is very light which helps for long listening. The nozzles have three holes where the acoustic tubes terminate at which are also medium in length. I think the build is fantastic folks. If you are going to build using plastics… this is the way to do it.

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Design​

This leads right into the design and aesthetic of the Cadenza 4 which I happen to adore. I love the minimalist, silver on white, clean aesthetic. Clean, clean, clean. You have that matte chalky white finish on the Shells that contrasts lightly against the silver matte finish of the faceplates. It’s tough looking. The faceplates have a small ridge running top to bottom to add some gradient texture with “Letshuoer” printed in parallel with that small ridge. I will say that this look won’t be everyone’s favorite, but I cannot help but be impressed. Iem design is always intriguing to me. I’m fascinated with how these brands try to separate themselves from the sea of sets. The visuals, the build, the graphics, whatever. The point is, I enjoy a brand who isn’t trying to simply win me over with flashy looks. The design is simple, but also sort of bold in that simplicity, and for that I say… “Well done, Letshuoer”.

Internals​

Letshuoer decided upon a quad driver setup. A “hybrid” quad driver setup that is. That’s one 10mm beryllium coated dynamic driver for the lows, one Sonion balanced armature driver for the midrange and two Knowles balanced armature drivers for the highs. As you can see the drivers are made by reputable companies whose sole purpose is to craft & create drivers. Now, I don’t know who the maker of the dynamic driver is, but I do know that it is the same or similar to the driver used in one of Letshuoer’s more high-end iems. Also, I’m speculating on what parts of the frequency each driver accounts for. We all know about the word “assume” though… it makes an “ASS” out of “U” & “ME”. So, take that as a grain of salt. Anyways, Letshuoer also added in a four-way electronic crossover as well as the acoustic tubes which both work to cohesively separate areas of the mix.

Fit / Comfort​

As far as comfort is concerned, I don’t have an issue whatsoever. Once again, I am reviewing a set that fits me like a glove. The only issue I had was with the included tips and finding a seal. However, the Cadenza 4 is made in such an ergonomically sound way that I would think they’d fit the majority of folks. Also, this set is extremely lite. They are not taxing on my ears and trust me, I’ve had these in my ears for over five hours at one time, many times. Comfort is great. That soft plastic seems to really be nice against the skin with no irritation at all. Beyond that, the isolation is better than most as well. Obviously not to the level of ANC sets but the Cadenza 4 still has very good passive isolation.

Drivability / Synergy ​

The Letshuoer Cadenza 4 is rated with an impedance of 15 ohms as well as a sensitivity of 102 db’s. This is a set that is not hard to drive to volume. However, just because you are getting them to volume doesn’t mean that you are getting the most out of the sound. The truth is, the Cadenza 4 is certainly a set which will provide an uptick in sound quality with more raw power. Also, the Cadenza 4 does react quite well (depending on how you look at it) to source tonality too. I can say with complete confidence that the Cadenza 4 will actually scale very well with more output. Usually, I’d say it’s about the source tonality and source ability rather than the actual power. Definitely some planars react this way and some other sets as well. There’s no “across the board” standard on it. It’s certainly something that we see. That is, power helping to bring out the most in an iem. However, by-and-large I feel that the actual sonic skill of the source brings on the better sound quality and a little extra clean amping helps to add dynamics at times too. As far as the Cadenza 4 is concerned, I don’t think you need a million watts to get it there. Maybe a good strong dongle dac at the least.

Mobile Listening ​

When on the go, out and about, in my office, doing chores, I’ll usually use a Bluetooth dac/amp or a dongle dac. Rarely do I bring a dap in these situations. I listed only a handful of devices that I used for testing but in reality, there were many more. Using the IFi Go Blu (CS43131 dac chip) was truly one of the nicest Bluetooth moments with this set. Using the 4.4 balanced output I found these two to pair very well. Also, I love the clean tuning and good power of the Aful SnowyNight and the EPZ TP50. Both devices use a CS43198 dac chip and both sounds very similar. Thankfully the neutralish sound of those two was a good mix with the Cadenza 4. However, I wouldn’t say that it is best to only use neutral sources. To be honest, I was more than happy with any source tonality that I tried. The only device that I tended not to enjoy was the Fiio KA3. Other than that, the Moondrop Dawn 4.4, EPZ TP20 Pro, Shanling UA2, Qudelix 5k, Hidizs S9 Pro Plus etc. all replayed the Cadenza 4 just fine. Still, warmer devices do slightly exaggerate the warmth. For whatever reason it wasn’t an issue though due to the Cadenza 4’s resolving sound and clean replay.

A bit more added power​

Listening with some heavier hitters I found gave me the same thoughts. I honestly enjoy my iBasso DX240, Shanling M6 Ultra and my Fiio Q15 dac/amp the same. Perhaps the Q15 was a little more on point and clean, but I feel that the warmer M6 Ultra actually replays beautifully. I like em’ all. Slight variations between them but each device is a bona-fide stud and does great while the Cadenza 4 is attached. Also, I did use medium to high gain on each, though I’m sure if I stuck to medium gain, I would’ve been good to go. Still, between any and all sources that I have used with the Cadenza 4, it is beyond obvious that the Fiio Q15 sounded the best paired with it. Truly a great sound when coupled together.

What should you use?​

If I were you, I’d try to pick up a good dongle dac. It doesn’t have to cost two hundred bucks either. There are some truly awesome dongle dacs under $100. Shoot, there are some great devices under $75! Even less. I would think that anyone who is affording the Cadenza 4 probably already has a decent source, but you never know. Everyone has different situations.

Sound Impressions ​

Oh Cadenza 4, how you have entrapped me in your lushness, your milky vibrance. Okay that sounded really weird, sorry for that. Moving on… The Cadenza 4 is what I would call lush and warmish, almost Harman-esque, U-shape to even W-shape sound. I also hear an excellent balance across the mix with the only outlier frequency division being in a slightly more forward midrange. It comes across smooth and has this lush presence across the mix. The Cadenza 4 has warm undertones but does have some added neutral vibrance as well. The sound is creamy but not thick, smooth and velvet but not murky or veiled. This is a colored sound that sits at the fringes of organic with very pleasant timbre & tonality. I would call the Cadenza a musicality first iem, a mostly relaxed iem, and an easy listening iem that is also pretty fun sounding. It simply replays my music so very well. Multiple genres are a treat on this set.

A testament…​

This isn’t a set that is going to unveil every last micro-detail (granted it is good for what it is) or separate instruments with perfectly fine-lined accuracy. No sir, this is a set that will either move your feet or make you close your eyes and simply melt away with it. Now, because this set replays in the manner that I described, I can tell you this… it won’t be for everyone. It is slightly polarizing in that way. Still, if you can appreciate all kinds of sound signatures then I cannot imagine you’d listen to this set and not be impressed. Very much in step with Letshuoer’s much less expensive triple DD, the Letshuoer DZ4. Just way more refined in every way. To have this warmly layered euphonic timbre, this casual smoothness which comes across so melodic and still staying true to each note without the rails falling off (covered in veil) … is a testament to Letshuoer’s ability to craft top class sets per their relative price points.

Condensed Sound Between the 20’s​

If you’ve ever read any review from me then you know I add this section for those who don’t feel like trudging through another one of my 10,000-word reviews. Also, I do understand. However, I definitely cover more, with more detail past this point.

Anyways, the sub-bass has good extension while not overwhelming the mix. It’s clean and has steely density and rumbles nicely. The mid-bass isn’t the most impactful I’ve ever heard. Slightly soft and mellow in its attack but also doesn’t oversaturate the mix which helps to keep the mids less murky. The midrange is warm, lean-lush, forward and truly great for vocals. Maybe it isn’t the most separated midrange out there (not bad either), but I’d take that any day for this musical sound. Very melodic, mood inducing, and engaging. In truth, I find the midrange to be one of the best I’ve heard in the price point. The treble is safe across the board yet with some touches of brilliance peppered into the mix. Not dark, but warm & energetic, not rolled off but nicely extended. I also hear nice liveliness and energy, but it’s toned down a bit. This is non-offensive through and through. Slightly mellow but not without some upper treble spice. I find the bass and the treble do well to create a nice balance in this warmer setting while the midrange sits out front. It’s all very melodic folks and comes together very well. Really a very nice sounding iem. This is not a drab and boring sound, and I don’t consider it dull either. There is good macro-dynamic energy even in the non-brisk and tempered sound.

Bass Region​

The low-end as a whole is certainly elevated and does have a very nice presence against the rest of the mix. However, it does sit a touch behind the midrange. Enough to not oversaturate the other frequencies or create too much of a foggy shroud over the presence of the midrange. Pushed back enough to let the midrange shine while not encroaching very hard on them. I find the bass isn’t attenuated or “less-than”. It’s a full bass region. Really, the extension of the sub-bass is pretty deep, and the mid-bass slam is definitely there. Just not that ultra vibrant, sharp & impactful slam. The low-end is dense in body, but also slightly plush in its attack. With that all said, I want to preface the bass section with one thing; this bass region is definitely acting in a supporting role. Everything is about the midrange on this set. Yes, the bass is good and yes, it’s satisfying, but it seems to take a slight back seat.

Sub-bass​

The sub-bass is one which will rise to the occasion at a moment’s notice. I’d say that the greater emphasis in the bass region rests in the sub-bass as well. Now, I don’t find the sub-bass to be very overemphasized or aggressive, but it can certainly thump. It’s still full and formidable in its substance and weight but just not so sonorous that it overtakes any other area of the mix. In my opinion, I feel other areas are actually a bit more forward in the sound field like the mid-mid, upper-mids, lower treble too. Unless of course the track I’m listening to features a heavy amount of that sub-bass rumble. That’s a different story. At any rate, the sub-bass has a less defined attack and carries a softer lined but authoritative rumble. I find that it really works very well with the overall theme of the tuning. Enough to add some good haptic vibrational and tactile feel to my music.

Sub-bass cont…​

Listening to a track that is always used for review purposes is “Groove” by Ray Wylie Hubbard. I use this track because I know it so well. If a set has some good sub-bass extension or emphasis, then this track will tell me that. Along with about twenty others that I use. However, with the Cadenza 4 I don’t get that overbearing sub-bass growl as I would with other more emphasized iems. That said, I love the emphasis that I do get as it’s still full bodied, it’s still deep and defined and still very agile. Yet, within that semi-deep but full-bodied sound I actually hear Ray’s deadpanned vocals very well as the sub-bass isn’t masking his voice. “Stereo Colour Cloud” by Sampha is another track where the bass region is the foundation of the track. Again, I hear a good and dense bassline coming across, boosted in quantity and clean enough against the backdrop of the rest of the melody. In this way separation is very good. The sub-bass can dive deep and can do so with a more warmly weighted and lush presentation. Also, this is in no way a disheveled or untidy sub-bass. Like I said, agility is actually very good with a ductile and dexterous ability to maneuver through dynamic shifts. It’s deep, it’s penetrative, but it isn’t overdone.

Mid-bass​

The mid-bass on the other hand is less emphasized. Still, it has plenty of meat to it but simply isn’t elevated to the point of heavy slam. Let’s put it this way, bassheads won’t be impressed. However, I still find the slam and boom satisfying enough on some tracks and on others I’d say that the Cadenza 4 lacks a bit in this region. I find the mid-bass to be slightly pillowy or plush. Perhaps a hint fuzzy at times. Not perfectly defined or chiseled sounding to my ears. This doesn’t make it bad either. The tonality and timbre are great, very organic and on top of that… It’s still fun and indulging. Listening to “Billie Jean” by Weezer (Michael Jackson cover), the kick drums are certainly enough to provide some density and good weight. However, the drums weren’t as sharp in their attack as I’d usually like. Still, I go back to the fact that the mid-bass, just like the sub-bass, both play supporting roles. This is a warm U to W-shape iem with forward mids and lush engaging vocals. The bass never oversteps its bounds. Especially the mid-bass. In that respect I absolutely adore what Letshuoer has done. It’s big enough, bold enough, it slams, it rumbles, and it does its job. It simply isn’t that emphasized or ultra detailed & defined mid-bass. Also, it doesn’t have the most bullish quantity I’ve ever heard.

Downsides to the Bass Region​

The bass region certainly has issues but if you put those issues into context to the situation of the tuning… you may start to see why the bass helps this set to be pretty special as a whole. First, bassheads won’t want this one. It’s not basshead. Yes, it can boom when called upon, but it does not reach bass Boi levels. No sir. Secondly, this is a bass which isn’t pointed and refined. Texture slightly lacks, maybe it’s a bit pillowy at times. Those things are certainly true. I have to repeat myself though; the bass is playing a supporting role. This is so very evident. The tuning is fantastic on this set. Also, besides adding just a hint more mid-bass emphasis in db’s, I’d say I wouldn’t change a thing.

​

Midrange ​

Like I’ve already stated, the entire tuning in my opinion supports this beautiful midrange. The mids are like the rest of the mix but simply tuned forward in the sound field in comparison to the bass and the treble. It is so nice to hear because it is tastefully done. In fact, here’s my round of applause. Okay, apparently it is tough to mimic a round of applause in a review. Notwithstanding… great job Letshuoer. The mids are subtly milky through and through. They have their moments of crispness and precision. Still, for the most part the midrange has lean-lush note weight and is never too congested or too weighted, never veiled and never too blurry. The midrange comes through just left of neutral with some warmth. Closer to a creamy style of vocals with good solidity underlying. Without question the mids are emotionally and engagingly refined. Not refined as in precisely defined, expertly separated, or detailed. I mean refined as in well structured, great timbre, and it’s as transient tight as a smoother midrange note can be while still keeping a smooth demeanor. Also, before I go any further let me just say that the detail retrieval isn’t bad by any means. Certainly not a dry or analytical style and so it won’t bring out every last detail, but still resolving to my ears.

Lower-midrange​

The low-mids have a slightly warm type of tonal color with a smooth attack and a more velvet style inflection in general. There is some spill over from the bass region though mostly the bass and mids intersect in a clean way. Not quite as pinpoint or as precise as some sets and not surgically abrupt in its note definition. That’s not to say that the Cadenza 4 can’t be that either. In general, and on most tracks, the lower midrange prefers silky and plush over glass lined and crisp. It’s a heavenly way to listen to my music.

Males in this region have a slightly lean body which I would again describe as lean-lush, or svelte-richness. It’s the 1% milk of the audio world. The mass of a note persists whether the actual body is thick or not. Also, the transient attack through release is actually fairly quick and clean within this slightly warmer environment. Instruments don’t sound as though they have prolonged harmonics or lagging decay. It’s as clean a sound as lean-lush can be while still favoring that velvet style timbre. Actually, the beauty of this region (and the midrange as a whole) is that the timbre has that warm natural hue to it. No odd metallic timbre here. When listening to “Blue Wall” by Noah Guthrie, his voice is so well highlighted and etched out, full but pronounced. Male vocals are very well done here. Or Lewis Capaldi in “Someone You Loved”. The Cadenza 4 takes his hard Scottish cadence and smooths over the rough edges. It gently pushes his voice out front, and it really is nice to hear.

Upper-Midrange​

I feel the upper mids are the crown jewel of the midrange and the midrange is the crown jewels of the Cadenza 4. Females simply sound devine to me. Now, the upper mids feature thinner note body but still have that plush style of timbre which softens the macro-dynamic energy and vibrance just a hair. This is not an overly energetic or super lively upper-mid. Having said that, there’s still some good capped-off energy and sprightliness there that never goes out of control. I also enjoy the layer of shimmer that exists for all instruments and vocals in this region. Perhaps ever-so-slightly lacking some edge and snap to percussion and guitar plucks, but it really does make up for it in how well it portrays female voices. Still, there is a slight lack in actual pinpoint precision throughout the mids and this holds true for the upper midrange as well. You aren’t getting a Simgot EA1000 style upper midrange, but instead a luxurious one, dripping in emotion and tuned for musicality. Possibly its greatest selling point, which supersedes any of its shortcomings. It’s the engagement factor! Lean-lush richness in every moment, yet still the Cadenza 4 is able to do so in a very resolute manner.

Lovely females​

Females are simply great, sounding forward enough to feel out front and on a pedestal yet that forward sound is never overbearing. It’s tasteful. The upper mids come through with smoother textures, while never sounding sharp or glaring. In fact, the entire upper midrange is this way. Never any shoutiness, sibilance, or undue peaks. Listening to Lady Gaga sing “Always Remember Us This Way” comes across a hint thinner in body but also, she sounds sublime with her scratchy but resounding voice. The Cadenza 4 truly shines a spotlight on her vocals. Also, Kacey Musgraves in “Deeper Well” is an experience when listening with the Cadenza 4 attached to the Fiio Q15. Eh, take any source. Kacey’s vocals are so very gratifying and pleasurable for me. The Cadenza 4 really props up her sweet inflections with absolute ease. Females are lovely with this set.

Instrumentation​

Also, instruments like piano are very tuneful and full sounding without coming across blunted. Some strings could use a hint more sharpness and edge dynamics but for the most part they come across organic and very nice sounding. Percussive instruments have enough definition in their leading edge though they may lack some crisp snap for some folks. Stuff like snares won’t have that pointed edge to the initial “pang”, but also, they have enough energy to come across like an exclamation point in my opinion. Cymbals always have good weight afforded to them with great harmonics which trail off into the treble. Never splashy or layered in a glossy sheen. Most instruments are slightly smoothened and have that layer of warmth to them which really fits the overall theme of the tuning. Timing is great and so is cadence and it all comes together admirably. I won’t go too long on instruments as every track can replay them differently. However, generally speaking Instruments come through nicely. Maybe there’s the slightest lack of acute punchiness or crispness here and there, but I don’t feel that it is always the case at all. There is still some reserved energy that comes out when called upon. Just don’t expect some ultra lively replay.

Downsides to the Midrange​

The mids biggest issues are lack of perfect separation of instruments and the smooth nature of the timbre which sometimes lacks good energy for proper bite and dynamics. This is a set with a slightly softened macro-dynamic energy. Details are not going to emerge like some more technically inclined iems within the price point either. They are there and I do feel that the Cadenza 4 is probably above average, but it definitely isn’t tuned as a detail king in the midrange. Beyond those things, the mids can sound slightly congested in more congested tracks. This probably goes without saying and is likely the case on most sets, but it should be pointed out. However, I cannot help but love the midrange as a whole. Vocals are wonderful and the Cadenza 4’s musicality is really endearing, and the engagement factor is off the charts for the price point. This set takes casual listening to a new level.

Treble Region​

The treble is not one which will brighten the entire mix in luminosity and brilliance. It is not that. I hear a warm treble. Not dark at all, but simply warmer sounding with dashes of brightness and enough lift to add much needed levity to the entire spectrum. However, it is warmer, not exuding vibrance to the point that it’s beaming in effulgent luster or anything. This is a partially relaxed sound, albeit with a highly resolving nature. I hear good separation up top while also hearing good extension. Maybe leaning towards being melodious and subdued to a degree but not lacking energy in relation to the rest of the mix. It fits the overall tuning perfectly. I hear just enough shimmer while coming across only slightly less radiant than I’d like. There’s still a bite to the attack edge of notes and though note outlines come through smoother up top separation of instruments is not an issue for me. Also, I can appreciate the more gradual climb through the pinna gain and the nice transition into the lower treble, as cohesion is really great on the Cadenza 4. This is definitely not for treble heads, but I do feel the treble is well done for what it is. It’s cohesive, it’s not going to kill your ears in fatigue and technicalities are good per the tuning.

Good speed​

The treble also has pretty nice speed and agility too, but it all comes through in a less sprightly manner. I can hear the very subtle micro-details and micro-dynamic shifts rather well, even in those more complicated tracks. Again, there are sets which are born and bred to illuminate the treble region in forced resolution and are tuned to maneuver easily through any track you throw at them. I’d say the Cadenza 4 can do that to a degree because it has quality treble which simply isn’t overdone or overcooked. Listening to Billy Strings in his track “Secrets” is awesome on the Cadenza 4. His banjo truly moves at breakneck speeds, and I can easily make out each note. Again, I hear good separation of each instrument and the timbre comes across very naturally to the ear. Yes, it’s a tad relaxed, but not in a mundane way. It’s relaxed in its luminance and brilliance. There’s a difference. That takes nothing away from its abilities to be nimble at all times or when it’s called to do so.

Not bad​

Extension into the upper treble was not forgotten either. However, Letshuoer made sure that the Cadenza 4 took on the upper treble in a tasteful manner. Yes, it’s warmer, maybe dark to some folks even. Certainly, it stays true to the tuning as a whole. Obviously, they couldn’t pump up the db’s past 10k and throw everything off like some sets we see. Though there is a peak out there which adds some dimension to the sound, some air and openness that is sorely needed. Also, timbre up top is very well tuned into this region. The example I always give is cymbals because they are the most obvious example to use and one which I listen for all the time. The secondary harmonics of a cymbal strike decay very nicely and aren’t simply a splashy mess of treble tizziness. They have control about them. They sound natural to the ear. Well, as best as I can tell anyways. I feel this goes for most instruments. They sound natural up top. So often we hear sets that are either rolled-off or so endued with brilliance and shine that they come across unnatural. I realize that treble lovers may disagree but not everything is for everyone.

Downsides to the Treble Region​

I would first point out once again what I’ve already spent time saying. That is that treble heads or bright treble lovers will not want to spend their hard-earned money on this set. It is warmer and toned down, slightly more relaxed than some sets. Also, the energy needed for a solid bite at note edges isn’t as sharp and a crisp crunch isn’t there at all times either. Other than that, maybe the treble is not the most detailed within the $200 to $300 price point, although they are above average in my opinion so, not really a downside. Just not up to some of the best in the price point. However, I wouldn’t want it to be. I wouldn’t want to do anything to ruin the mellifluous musicality of this set. Don’t touch anything.

Technicalities​

Soundstage​

The soundstage is actually very nice. With the Cadenza 4 in your ears, you will hear a psycho-acoustic stage that sounds wide for an in-ear. This also goes for height. It’s a big and full stage presence. I feel nothing is overly cramped at all. On top of that, there is good depth for layering. Now, I hear this better with a cleaner source, but I find that layering is actually decent and front to back depth is also good. This is a very nice attribute to have. Almost 3D in its presentation of the stage. Obviously, the track will do a lot to dictate just how expansive the stage is for you and some tracks simply aren’t recorded in a manner to best depict this stage. Still, by-and-large the stage is certainly above average in my opinion. Of course, I haven’t heard every set in the price point, but from my journey through audio I find the soundstage to be good and even a “pro”.

Separation / Imaging ​

This is where we see some closing of the space within the sound field. Separation isn’t perfect. It isn’t bad either. It all checks out though. You have a richer sound with slightly lusher layers and less midrange air separation. Again, not something that takes away from my musical enjoyment, but something to point out. I labeled separation a “con” at the beginning of this review and I did so because there is some slight congestion at times. It’s a softly edged sound, plush, warmer than neutral and sometimes elements of a stage are gently squeezed a hair. Oddly enough, Imaging is fantastic with very nice placement of those elements. Left to right and front to back feature well laid out depictions of an imaginary stage. This helps in layering of sounds within the sound field. Perhaps, those sounds aren’t as defined as some would like but there are still well done and in keeping with the overall tuning.

Detail Retrieval​

Here is another area where I run into some slight issues. Well, they aren’t issues to me, but I could see that some people will likely wish that the Cadenza 4 had better detail retrieval for the price. Regardless, I still feel that the detail retrieval is actually quite good for how the Cadenza 4 was tuned and probably average to above average against the field of iems in its price point. The only real caveat is in hyper congested music or very complicated tracks as well as heavy bass jams. In those instances, the Cadenza 4 really doesn’t have the openness, air, transient swiftness or crystalline definition to skirt around more complicated and congested music. Again… I wouldn’t want it to. Still, all things considered… average to above average depending on the track.

Comparisons​

Note: These comparisons will not be a duel to the death. My approach is not to crown one set the winner over the other. I simply compare sets to hopefully explain the sound of the set I’m reviewing a bit better. Also, I use very general terms with very broad strokes. I won’t go I to great detail as I do try to keep my reviews under a certain word count.

Hisenior Mega5P ($239)​

The 1st comparison involves one of Hisenior‘s earlier releases, the Hisenior Mega5P. The Mega5P is a five driver Hybrid iem consisting of one 10mm dynamic driver as well as four Balanced armature drivers. Folks, the 5P is a special iem which made waves in its genesis. The sound and naturally neutral tonality as well as the balance across the mix is very endearing. Without question one of the best iems you can buy within the price point if you crave that clean mannered balance.

Differences​

Starting with the build, the Mega5p is an all resin-built set with a solid chassis and is very ergonomically gifted. Though the Cadenza 4 is probably built to be a bit more durable and at least for me it is just as comfortable. As far as looks go, the Mega5p has that gorgeous black and white swirling pattern that is simply awesome to look at while the Cadenza 4 is more minimalist and reserved in its look and appearance. I like them both. Without blinking an eye, I’d say that the Cadenza 4 has much better accessories with its awesome modular cable, and better unboxing experience.

Sound Differences ​

Between the two, the Mega5p is definitely the cleaner sounding set but they both have a wonderful balance across the mix. The Cadenza 4 has a much richer note weight and delivery to the 5P’s leaner note weight and more resolving and transparent sound. I find that both sets have about equal bass emphasis between the two. The 5P’s bass is a slight bit more forward in the mix but I feel the Cadenza 4’s bass is actually a bit more agile. The midrange of the Cadenza 4 is much richer and fuller bodied in comparison to the 5P’s midrange. I hear a more lush, creamy sounding timbre on the Cadenza 4, to the 5P’s more transparent and resolving sound. Definitely the 5P has better air, openness and separation in its midrange. That said, the Cadenza 4 is much more musical & engaging to my ears. The treble region is relaxed on both iems, but the 5P is once again the cleaner sounding set, while the Cadenza 4 has the more lush and musical sound. Extension is better on the Cadenza 4 with slightly better bite to treble notes.

Technicalities​

Detail Retrieval goes to the Mega5p almost across the board. It is simply tuned in a way to draw out the subtleties a bit easier than the Cadenza 4. Separation of Instruments and voices suffers the same fate for the Cadenza 4 as the 5P has a more defined note edge across the mix. Both sets have good transients that come and go pretty swiftly. I do think it’s easier to hear on the less rich sounding 5P though. Soundstage goes to the Cadenza 4 in all directions. I hear better width and depth with slightly more of a holographic sound. Imaging comes through about equal on both sets. They both do a very good job in this area.

Further thoughts on this comparison ​

As you can see, these two sets trade blows quite well. You may have also noticed that the two are very different from each other which makes for a classic preference battle. Meaning, your preferences will clearly align with one of the two. It should be obvious which one you think you’d enjoy most. As for me, I honestly enjoy almost all sound signatures and can truly appreciate them both as well as enjoy them both. I think that I am leaning towards the Cadenza 4 though because there aren’t a ton of iems that sound like it. The musicality is simply greater on this set. It is much more melodious and has that weighted and rich timbre that is simply spellbinding to me. I hear many sets like the 5P. So many sets are tuned similarly. Granted I take nothing away from it at all. There are many days that I reach for it when I have a chance to simply max n’ relax. However, the Cadenza 4 has something that the 5P simply doesn’t and that’s raw musicality. I love them both, but I totally understand if you disagree.

Penon Fan 2 ($279)​

The Penon Fan 2 is one of those sets that you either love or you don’t. It’s even more polarizing than the Cadenza 4 is, in my opinion. Anything that leans heavy either way of neutral is going to be pretty polarizing. More on that in a bit. So, the Penon Fan 2 is actually a four-driver hybrid iem with two dynamic drivers and two balanced armature drivers. All of the drivers are of great quality. Now, I never got around to reviewing this set, but I can assure you that it is a bona-fide stud. One of those sets that lean so heavy in one direction that brain burn all of the sudden becomes something that is a must. Truly a contender for the style of tuning that the Fan 2 has, but it won’t please everyone.

Differences​

First, the Fan 2 is molded wholly out of a very nice resin material while of course the Cadenza 4 has that nice HeyGears build. Again, I still feel the Cadenza 4 is made with better materials, just the feel them both in my hand tells me that. Still, both well made, both are dope looking. I do prefer the look of the Cadenza 4 but that may also be a prisoner of the moment type thing. As far as unboxing experiences go, the Penon Fan 2 has the better set of accessories. Except the cable… definitely the Cadenza 4 has a much better cable. Everything else goes to the Fan 2. Much better tips, much better case. Of course, the Fan 2 is also pricier. The Cadenza 4’s original MSRP is $249 (on sale for $229 now) while the Fan 2’s MSRP is around $279. Of course, the Fan 2 is also on sale constantly. I suggest getting on their (Penon) email list as they promote their sales to those folks who are subscribed. Always good sales. I got the Fan 2 for $150. As far as aesthetic differences I do feel the Cadenza 4 has the upper hand, but the Fan 2 is right there with it. Both worthy of their price tags.

Sound Differences​

To start, I thought that the Cadenza 4 was lush, warm and weighted. The Fan 2 is 100% lush! It is so far to the warm/dark side of the aisle that it will directly cut off half the listening population on that alone. However, if you can respect the tuning for what it is than you’ll see how special this iem is. Anyway, the Fan 2 is warmer, darker, and with thicker note weight. The Cadenza 4 is leaner in its approach, it’s cleaner, more balanced and less like molasses. The Fan 2 is a milkshake against the 1% milk of the Cadenza 4. Naturally the Cadenza 4 comes across cleaner and with more vibrant macro-dynamic energy. The Fan 2 however, has that dark sound, but a very highly resolved darkness to it. It is a unicorn of an iem. To be that dark and still come across as W-shape is a different approach that not many brands dare to try, well done Penon. However, the Cadenza 4 has more of a balanced sound that to me is special.

Between the 20’s​

The Fan 2 has a more bulbous, thick, full and all-encompassing mid-bass region. The Cadenza 4 is much more lissome, ductile, agile and impactful. Having said that, the Cadenza 4 also has better sub-bass extension, deeper in that region too. The Fan 2 has a quick attack but a slow decay, atmospheric to the umpteenth degree. Whereas the Cadenza 4 hits n’ gets with better control. The Cadenza 4 simply doesn’t cloud the rest of the mix with as much murkiness, while the Fan 2 does have a veil of warmth that permeates the entire tuning. Veiled, but in a very charming way. The Fan 2 has beautifully rendered warm and cozy vocals with a forward midrange that is very thickly weighted. Now, the Cadenza 4 also has good density of midrange notes, but they are also leaner, more sprightly, vibrant and better resolved. I do feel that the rich tonal presentation of the Fan 2 is great, but the clear winner in vocal playback goes to the Cadenza 4, for me. The balance is better on the Cadenza 4, while the Fan 2 is tilted way to the left. The bass of the Fan 2 encroaches in a very tactful way into the midrange creating that nice milky and rich sound while the Cadenza 4 is a bit more tasteful for most people. The treble region of the Cadenza 4 is brighter (if you can call it that), more detailed, faster, more bite, more energy, and better extension by a long shot. While the Fan 2 has this vivid and yet warm dynamic treble that is so nice if you can wrap your brain around it.

Technicalities​

Technically speaking the Cadenza 4 has better detail retrieval almost across the board. The Fan 2 specializes in “macro-details” whereas the Cadenza 4 is able to illuminate much more of the “micro-details” from my music. Imaging is special on both iems. Both can reproduce a good stage with good placement of Instruments and voices. Separation is better on the Cadenza 4, and I also find that the transient attack and decay is a bit more lithesome, malleable, and simply springier on the Cadenza 4 as well. With a bit more air, notes are better defined. When listening for soundstage differences I feel the Fan 2 has this intimate, average width, completely musical stage that is so engaging with very good depth of field. Layering is great even with the slightly clouded separation of those layers. The Cadenza 4 does have a wider, taller and more immersive sounding stage, it’s fuller and more all-encompassing and nearly as deep. Though depth is a tough thing to try to quantify, I simply hear slightly better front to back depth on the Fan 2. I think most technicalities go to the Cadenza 4, and it stands to reason. However, technicalities are neither set’s forte. Neither iem is a detail king, neither is dry and analytical in its approach and both have that rich and cozy lushness to their sound.

Further thoughts on this comparison​

Folks, I don’t know how to adequately say this but both sets are phenomenal. In truth, I love them both. How could I not love the Fan 2’s lush and vivid fullness and warmly weighted musicality. I love it. So easily I can get lost in how it portrays my music. However, I have been taken away by the Cadenza 4’s lean richness and beautiful midrange quality. I do think that the better iem for me is the Cadenza 4. At times. There are moments when the Fan 2 hits that urge within me. Moments that I want only what it can provide. However, I do think that the more talented and all around better iem is the less expensive Cadenza 4. I usually never say something like that, but I have to be realistic. Not as many people will fall in love with the Fan 2 as I and a few others have. Both are great for what they are, and I am blessed to have them both in my collection.

Is it worth the asking price? ​

The question posed in the header is one that I feel I’ve answered many times already inside my review. Folks, I would pay the $229 or $249 any day of the week for the Cadenza 4 without a thought! To have what the Cadenza 4 provides to my listening experience is priceless to me. It is fast becoming one of my favorite iems within the $200 to $300 price bracket. However, I have to be real. Not everyone will share my love. When you have sets like the Tanchjim Origin (Origin Review), Simgot EA1000, Rose Technics QT9 Mk3 (QT9 MK3 Review), OG Mangird Tea, Aful Performer 5, Kiwi Ears Orchestra Lite (Orchestra Lite Review), Penon Fan 2, Penon Vortex, Seeaudio Bravery, Dunu Falcon Ultra, BQEYZ Wind, BQEYZ Winter, Kinera Hodur (Hodur Review), ISN Audio NEO 5, it’s a tough road for any set, and that’s only to name a few. There are many more iems that are legitimate studs within $200 to $300. Also, not everyone will yearn for what the Cadenza 4 offers tuning wise. So, I can only speak for myself when answering this question in this particular price bracket. For me, without question the Cadenza 4 is worth the price to own it.

The Why…​

Because the HeyGears build is so well constructed, with such a uniform, clean and durable feel. Also, because the Cadenza 4 is 100% comfort and ergonomics. The Cadenza 4 is partially worth the price because of how well the design language is. Such a beautiful design. Letshuoer didn’t need to add any flashiness because the actual charm of this iem is in its simplicity, and there’s something refreshing about that. Fully bold in appearance while at the same time it’s fully elegant. The accessories are some of the best you’ll receive within the price point, hands down. This cable is truly a special one and you’ll know that when it is in your hands. With all those nice words that give proper respect to a well-designed and well-crafted set… the true worth of every iem is in its sound, of course. Folks, Letshuoer obviously used very good drivers and they expertly tuned this set to a very particular sound style which is fastly becoming a Letshuoer brand “house sound”. I don’t know if labeling it that is in agreeance with Letshuoer, but it sure looks like it from the outside looking in.

Cont…​

The bass is a very well-done supporting actor which is tailored to prop up the midrange and does so with the perfect amount of depth, visceral slam and it does fortify the low end of the spectrum. Next, the treble has that never offensive but perfectly fitting emphasis which is another supporting role that suits this tuning to the tee. A few db’s added or taken away would change the overall dynamic and so bravo to Letshuoer for the vision that they had when going into this venture. The treble is just brilliant enough but warm in its approach, detailed enough and extended very well without any sibilance, splashiness, piercing peaks or treble glare. Nevertheless, despite how nice each end of the spectrum is, it’s all about the mids. The midrange is flat-out and hands-down one of the best I’ve heard in the price point. No bones about it folks, this midrange is delightful. The vocal reproduction of both male and female voices is exquisite. I don’t say this half-heartedly, friends. I say this with complete and utter conviction. The soundstage is above average in width, deep and with good layering which helps to provide better than adequate imaging. I know that not everyone will share in my enthusiasm, and that’s okay. But man is the Cadenza 4 a well done iem! Letshuoer! Here’s me patting you on the back! Yes, the Cadenza 4 is worth the asking price.



Full Review HERE

Ratings (0-10)​

Note: all ratings are based upon my subjective judgment. These ratings are garnered against either similarly priced sets or with similar driver implementations or styles with the unique parameters of my choosing. In the case of the Letshuoer Cadenza 4 ratings below, that would be $200-$300 iems in any driver configuration. Please remember that “ratings” don’t tell the whole story. This leaves out nuance and a number of other qualities which make an iem what it is. A “5-6” is roughly average and please take into consideration the “lot” of iems these ratings are gathered against. $200-$300 US is a pretty vast scope of iems that is extremely competitive, and so seeing a Rating above a “9.0” better mean something very special. My ratings are never the same and each set of ratings tells a different story. Each time you read one of my ratings will be unique to that review. Basically, I create a Rating that makes sense to me.

Aesthetic ​

–Build Quality: 8.7 Built very well, HeyGears builds are great.

–Look: 9.5 Clean, fresh, simple, elegant.

–Fit/Comfort: 9.8 Fit and comfort is great for me.

–Accessories: 9.5 Very well accessorized.

–Overall: 9.4

Sound Rating ​

–Timbre: 9.4 Top class timbre.

–Bass: 8.5 Extension, great supporting role.

–Midrange: 9.8 Great presence in the mids.

–Treble: 7.8 Relaxed but great tonality.

–Technicalities: 8.4 Soundstage & imaging are great.

–Musicality: 9.7 Musical thru & thru.

–Overall: 9.0

Ratings Summary:​

Have I ever explained to you how little I enjoy Rating anything? Folks, please hear me, ratings are no good. I do it because I’m asked to. They tell nothing of nuance and never give the full picture. It’s a cheap way to explain anything. In each rating category, I could have multiple sub-categories. These are bare bones ratings, so give the proper weight to the importance of them. That’s very little. Grains of salt my friends. That said, I do have to rate the Cadenza 4. However, let’s not get things twisted, like most sets, the Cadenza 4 cannot be broken down into categories. This is a set which should only be rated and reviewed as a whole. This is something I say often in my reviews, and it couldn’t be truer than for the Cadenza 4. When each Rating is individually broken down and rated it simply looks worse than one grade as a whole. Even when I tallied the ratings and got a “9.0” total sound score it still is less than what I would give this set. It’s a “9.5” at least in my eyes. Probably more like a “9.8” against the field of sets that I’ve heard. However, you have to enjoy the tuning for this to be true to you as well. Not everyone will agree with that. Coincidentally, that is exactly what makes this hobby the best hobby on earth. I’m convinced of that.

Explain Yourself!!!​

Okay, so there are more than a few ratings which may garner some anger and DM’s (yes this happens). Some of you are crazy about this stuff and actually get mad, which is weird, so calm down and hear me out. Time to be adults and act like actual men… and women. I would say that the bass category could go a few points less for some folks. I’m sure they won’t find it as enthralling as I do. It isn’t the most defined, not the most glass-lined and clean, doesn’t have the best transient swiftness. So how did I give it an “8.5”? Because of what it is for the overall tuning. Yes, I could use a hint more lift in the mid-bass, but the extension is great, and the density is good too. It’s resolute enough for an 8.5, it does have adequate rumble and plenty of slam for most any genre. To be honest, I looked this over for a while and with a total of 10 iems in front of me I established that “for me” the low-end carries an “8.5”, give or take. Timbre may be a problem for some folks too. You do have to enjoy the warmer, richer and less vibrant timbre to agree with me that it is a “9.4”. Basically, you have to actually like the tuning and so these ratings could go either way. Also, ratings are personal to the reviewer so again, please take this ridiculous section as a grain of salt… please!

Conclusion​

To conclude my full written review of the Letshuoer Cadenza 4, I want to first thank the awesome people of Letshuoer for providing the Cadenza 4 in exchange for a feature at Mobileaudiophile.com and a full review. Letshuoer has never once asked me to skew my words, talk well of their products, pre-read my review, and never tried to bribe me or lead me in any direction. Kudos to Letshuoer, they have my respect. Instead, they simply let the chips fall where they may. They believe in their product and that in and of itself is a testament to Letshuoer. So, thank you very much!

Other perspectives ​

Please! Please look at other reviews. Do not simply read mine and hit “buy now”. Don’t do that! Read, watch, or listen to other thoughts. My thoughts are mine, personal to me. The next guy or gal may feel completely different. Please do yourself a favor and do your homework before shelling out the $250 to own this set. It will pay off in the long run to have a bit more of an educated decision. There are so many amazing reviewers out there and they may fit your preferences a bit closer than I do.

Thanks​

Also, thank you for reading this review and clicking the link to our website. This is of high importance to us. Every click is important, the time you are here is important, and I couldn’t thank you enough. We rely on you to build our site as we are a small group of reviewers, each with our own style and opinion. We rely on you and hope that you find our site worthy of your time. I think I’m done friends. Please take good care of you and yours, stay as safe as you can and always… GOD BLESS!

“Music is like a dream. One that I cannot hear.”

~~Ludwig Van Beethoven, German composer and pianist


LETSHUOER AUDIO as an audio company will always deliver a high quality product from their entry-level up to the TOTL- flagship model range with some of their products that still resonate with the audio community. The EJ07 and S12 PRO are the epitome of their excellence as an audio company on how these particular models somehow truly influences the state of the audio market.



What I have here that will be featured on this review article is their latest product, The LETSHUOER CADENZA 4. This model is supposedly an affordable version of their TOTL - flagship model, CADENZA 12 which was known to be the most priciest LETSHUOER product to date. Like its flagship sister, CADENZA 4 also has hybrid driver configuration albeit it has lesser numbers with some different driver technology, new materials of its cable and a composite shell chassis. Although, like its predecessor, it still retains a modularity aspect of its stock cable.




As a set with a hybrid driver configuration, CADENZA 4 has a single dynamic driver and three balanced armature drivers on each side. The dynamic drivers that were implemented are 10mm dual chambered layout with its beryllium-coated thin but durable diaphragm which solely handles the low frequencies to have a precise and depth bass response. Aside from dynamic drivers, it was by balanced armature drivers that produced by two of the most premium audio solutions in the market, Sonion and Knowles in which these drivers directly responsible on midrange and high frequencies to have smooth, consistent sound with better clarity while having a good brilliance of its sonic quality. These drivers were connected into a 3D-moulded 3-way acoustic tube along with a 4-way electronic crossover for accurate, harmonious and well-defined separation on each part of the frequencies.




The shell chassis that were used to encapsulate drivers and other component parts are made of composite material and it takes the form of a typical UIEM-style design in a medium-size. The faceplate is made of metal alloy which appears to be sand-blasted while the cavity base were 3D-moulded resin material that were printed by HEYGEARS to achieve that light, consistent and smooth contours for better sealing and comfort. Like all LETSHUOER products, The CADENZA 4 still uses a 2-pin connector as its interlocking mechanism which is more stable and easier to detach.



The CADENZA 4's stock cable has 2-core, multiple strands of high-purity silver-plated monocrystalline copper which is known for its seamless transmission of clean audio signal. It also has a modular termination plug system where we can swap termination plugs that makes this set more versatile and compatible to be used on devices with its angular design.



Aside from its stock cable, LETSHUOER also released their new upgraded cable, the LR-Nebula. It is a 2-core braided 6N high-purity monocrystalline copper cable with malleable ear hooks. The particular material will deliver a seamless audio signal transmission and improve conductivity. It uses a 0.78mm bi-pin connector which compatible to all LETSHUOER set and other IEMs with compatible connector. The connectors and termination plug is gold-plated to lessen oxidation and resistance to corrosion.



Its overall build quality is somehow sturdy enough yet supple and flexible to touch. You choose either a standard 3.5mm single ended or a 4.4mm balanced upon ordering.



As for its product packaging, LETSHUOER is known to have a well-done product presentation on their items. The packaging box of CADENZA 4 is a quite bulky rectangular one and as we all know that LETSHUOER is also quite generous on inclusion of accessories.



Here are the following contents on LETSHUOER CADENZA 4's packaging box:

• Pair of LETSHUOER CADENZA 4 IEMs.
• Modular stock cable.
• Termination plugs (3.5mm SE, 2.5mm balanced and 4.4mm balanced)
• Circular IEM case
• Circular ear tips plate
• Three (3) pairs of wide bore silicone ear tips in different standard sizes.
• Three (3) pairs of balanced bore silicone eartips in different standard sizes.
• Paperwork like product catalogue, user manual and warranty card.

Regarding power scaling, CADENZA 4 is fairly straightforward in terms of amplification; with a sufficient amount of power output, this set is able to deliver a full-range sound. But there are some interesting things that this set is truly flexible in terms of driveability as if this device is paired on devices with high quality DAC/amps, it shows its true potential on why this item is one of the best sounding out there.



To determine its tonal quality, this set exceeds my preferred sound signature as CADENZA 4 has that balanced-neutral sound profile that I truly adhere to. It has well-balanced bass and midrange frequency and just enough elevation on upper midrange up to the brilliance part of the treble region.



(Graph was provided by @baskingshark , credits to him)


LOWS/BASS:

The overall bass quality of this set is more on a balanced side as it has a good sub-bass presence while maintaining a reasonable amount of mid-bass though it is more on transparent side to give that cleanliness, preciseband thumping bass response. This type of bass response is aligned with IEMs that were neutrally-tuned similarly.

Sub-bass presence is quite perceptible on this set on how it conveys a significant amount of reverberations and rumbling generated from instruments such as synthesisers, low tone bass guitars, octabasses and drum machines. Mid-bass appears to have a decent texture with good detailing on some bass-focus instruments’ and low octave male vocals’ note weight but it will sound a bit transparent and less robust bass quantity. On how I observe the tonal characteristics of each instrument, bass guitars have sustaining and raspiness on every plucking of its strings while bass kick drums have resonant and rumbling sound on them. Bass trumpets appear to have a full sound albeit it lacks that dark timbre as this particular instrument should have. Bass-baritones vocals sounds a bit leaner side that fact that its apparent inadequate volume and depth but at least it has those distinctive vocal tails that it has guttural and reverberating sound.


MIDRANGE:

This is the most prominent part of CADENZA 4's frequency spectrum and probably the main attraction of this set on how it presented the general quality of its midrange. This is absolutely one of my ideal midrange responses as it has this tidy, neutral and transparent sound while maintaining a well-balanced tuning with just a slight degree of warmth that will be beneficial for both vocals and some instruments’ tonal colour.

On male vocals, baritones have a smooth, sweet and lushness on them while tenors have clear, agile and ringing sound that leggero and lyric type of tenors will sound almost perfectly. And then on countertenors, they have these tender, graceful and lightness on their vocal quality. Female vocals like contraltos appear to have a sufficient richness and smoky on their voices while mezzo-sopranos have its velvety, graceful and smoothness to have that equanimous sound. Soprano vocals have a gleaming and crystalline sound that will be versatile to all types of soprano whether it is dramatic, lyric, soubrette or coloratura.

As for instruments, strings like guitars and violins, the former has an ample crisp, well-emphasis on its overtones and balanced sound on every pluck of its strings while the latter one has a vibrant and eloquent sound on every motion on its bow string. On woodwinds, flutes have rich, soft and silvery while piccolos have clear and graceful sound. Clarinets have these mellow and melodic sounds and the saxophones’ sounds mellow and velvety. Brasses like trumpets, horns and trombones have these vivid, mellow and smooth sounds respectively. In reference with percussive instruments, snare drums have clear and precise sound, tom-toms have a tad warm and resonant sound on every hit, field drums have this sonorous and majestic sound along with kettle drums that have those deep and a bit rounded sounding. Pianos appears to have an even and well-balanced sound with a hint of mellowness in its tone.


HIGHS/TREBLE:

The treble response of CADENZA 4 is relatively smooth and well-balanced; it seems that the gradual rise of the upper-mids then maintains an almost level presentation along with presence towards the brilliance treble region. That slight emphasis on the upper-midrange and presence gives a well-done clarity and some vocal definition and attack of instruments without having any harshness and sibilance.

On the brilliance part, it has a modest amount of airy extension with well-balanced and moderate sparkle to sound a bit glossy and on the satiny side. Cymbals have a lustrous and undulating sound while hi-hats have that shortened buzzing sound. Celestas have a silvery and soft sound, then on glockenspiels, they have a lustrous and tender sound.


SOUNDSTAGE, IMAGING AND OTHER TECHNICALITIES:

My estimation on how I perceived its overall proportion on its sound field that this set is capable of, it has an above average to wide lateral span on sound/speaker stage, with good height and ample depth on it. It somehow gives me a moderately spacious headroom within my aural perception.

Its stereo imaging projection somehow gives a holographic-feel in which I was able to locate the exact positioning of instruments and vocals in a sonic canvas where it has an excellent layering of frequency and dynamic tones, and a sterling separation of elements for a hybrid set. So playing complex multi-instrumental tracks will be easy peasy for CADENZA 4.

Cohesive performance of its hybrid drivers is quite stellar on how its dynamic driver is fast transient response without any distortion that works in tandem with balanced armature to have a crisp and detailed sound output. Resolution capabilities of this set is also good that it has a good presence of macro-dynamics with an impressive detail retrieval on extracting some nuances and subtleties of information like notation attacks, vocal ends and spatial reverberations.


PEER COMPARISONS:

AFUL PERFORMER 5

• This is AFUL's first model and like the CADENZA 4, it also has hybrid driver configuration with one dynamic driver and four unspecified models of balanced armature drivers that are encased in a standard UIEM-type shell chassis made of resin material. Both sets offer good passive noise isolation as it is able to block some unwanted noises from the outside.
• As for tonal characteristics, PERFORMER 5 has more colouration on its sound quality on how it was tuned as it takes a more U-shaped sound. It has more pronounced bass response but in slower and lethargic manner, a tad recessed but warmer midrange and an overboosted upper-mids that cause some shrill and piercing sound on female vocals and just a modest treble air extension.
• On technical performance, PERFORMER 5 is quite a dismal one particularly on sound staging, a mundane cohesive performance of its drivers due to sluggish bass transient response and it's a bit unnatural tone and timbre.

KIWI EARS QUINTET

• Another hybrid set from KIWI EARS, but this set has additional types of transducers like piezoelectric driver and “micro-planar” driver that make this set a “quad-brid”. While this set has a similarly built shell chassis with CADENZA 4 as it is also a composite one, its stock cable doesn't have a modular feature.
• As for tonality, QUINTET has a mild U-shaped sound profile. While it has a similar bass response with CADENZA 4 as they are both on a tighter side, It has more brighter and energetic midrange and treble response with good amount of sparkle and more airier extension.
• On technical capabilities, while both sets have similar sound/speaker stage dimensions, it is noticeable that the QUINTET has a lack of depth. But in some technical aspects, they are on equal footing.

THIEAUDIO HYPE 2

• One of THIEAUDIO's affordable set and it is also a hybrid driver configuration. It has a dual dynamic driver in an isobaric array with two balanced armature drivers provided by Sonion. The drivers and other components are encased with UIEM-type resin shell chassis but its high quality stock cable doesn't have a modular termination plug option.
• Like the aforementioned QUINTET, the HYPE 2 also has a mild u-shaped sound signature. Compared to CADENZA 4, it has more punchy bass response due to a more textured midbass, similar midrange and treble presentation as it maintains a neutral, balanced and smooth quality on them although it has a less transparent nature.
• Technicalities-wise, it has very similar performance with CADENZA 4 in almost every category from sound/speaker projection up to the cohesive performance, although CADENZA 4 is a bit better on micro-detail retrieval.

As I conclude my assessment regarding this set, The CADENZA 4 remarkably does an excellent job in terms of tonality and technical performance that we will usually encounter with other sets at higher price tier. This also proves that LETSHUOER continues to evolve itself as a very competent and innovative audio company that audiophiles and audio professionals should pay a lot of attention to.

With a premium balanced armature drivers, high quality dynamic driver with electronic frequency crossover circuitry and the inclusion of a modular high quality cable at least than US$250/£200, and also has that tuning refined of having that balanced-neutral sonic profile, this set is certainly one of the best product releases in this year.

CADENZA 4 is now available at LETSHUOER's official online store, Check out the link below.

★★LETSHUOER CADENZA 4 - OFFICIAL★★


Also if you are interested on other LETSHUOER products, here are the following links:

◆ LETSHUOER GALILEO

◆ LETSHUOER S12 PRO

◆ LETSHUOER CADENZA 12

◆ LETSHUOER EJ07

◆ LETSHUOER EJ07M

◆ LETSHUOER EJ09

◆ LETSHUOER CONDUCTOR (First Impression)

◆ LETSHUOER D13

◆ LETSHUOER DZ4

◆ LETSHUOER S15

SPECIFICATION:

MODEL: LETSHUOER CADENZA 4
IMPEDANCE: 15Ω
SENSITIVITY: 102dB
FREQUENCY RESPONSE: 20Hz – 40KHz
CABLE LENGTH: 1.25m
PIN TYPE: 2-PIN CONNECTOR
PLUG TYPE: MODULAR (3.5mm, 2.5mm. 4.4mm)
DRIVER UNIT(S): (1) DYNAMIC DRIVER + (3) BALANCED ARMATURE DRIVER(S)

MY TEST TRACKS: ( * = 16-bit FLAC, ** = 24-bit FLAC, *'* = MQA, '*' = DSD, *'= .WAV)

Alison Krauss -When You Say Nothing At All *
Jade Wiedlin - Blue Kiss**
Led Zeppelin - When The Levee Breaks **
Mountain - Mississippi Queen *
Queen - Killer Queen **
Guns N' Roses - Patience *'*
Eric Clapton - Tears in Heaven '*'
Sergio Mendes- Never Gonna Let You Go '*'
Pearl Jam - Daughter **
Roselia - Hidamari Rhodonite *
Assassin - Fight (To Stop The Tyranny)*
Celtic Frost- Visual Aggression *
New Order - Blue Monday *
The Corrs- What Can I do (unplugged version) *
Jimi Hendrix Experience - Voodoo Child *
The Madness- Buggy Trousers *
Metallica - Motorbreath **
Mariah Carey- Always Be My Baby *
Destiny's Child - Say My Name *
Malice Mizer- Au Revoir *
Mozart - Lacrimosa *
New York Philharmonic Orchestra - Dvorak- Symphony 9 " From the New World." *
Eva Cassidy - Fields of Gold (Sting cover)*
Michael Jackson - Give In To Me *
Exciter - Violence and Force *
Diana Krall - Stop This World **
Debbie Gibson - Foolish Beat *'*
The Sisters of Mercy – Lucretia My Reflection**
Suzanne Vega – Luka **
Lauren Christy – Steep *
Ottoman Mehter - Hucum Marsi *
Diana Damrau - Mozart: Die Zauberflöte*



P.S.

I am not affiliated to LETSHUOER nor receive monetary incentives and financial gains as they provide me a review unit for an exchange of factual and sincere feedback from yours truly.

Once again, I would like to send my gratitude to IVY GAO and BETTY for providing this review unit. I truly appreciate their generosity and trust towards me and other reviewers.

TONALITY: 8.5/10
TECHNICALITIES: 8.2/10
TIMBRE: 8.5/10 (with Nebula cable)
SOUNDSTAGE: 8.5/10
IMAGING: 7.8/10
MUSICALITY (subjective): 8.5/10
CONSTRUCTION: 8.2/10
ACCESSORIES: 9/10
SOUND VALUE: 8.2/10

INTRO

Letshuoer is a well established earphones company from China that specialize in hybrid IEM of all types, from multi-DD (DZ4) to hybrid (EJ07M-EJ09) to planar (S12-S15).

Today I will review their latest release, the Cadenza 4, which is a follow up of the Cadenza series that has another flagship model called Cadenza 12.

The number stands for number of drivers, so for this Cadenza it means we have 4 drivers: 1x 10mm beryllium coated DD+1 sonion BA and 2 Knowles BA.

Priced 240$, the Cadenza promises high sound value and a ‘’melody of enchantment’’!

As well, the acoustic implementation of drivers is enhanced with 3D printing technology which permits to tube all drivers precisely and avoid unwanted resonance or distortion or inter phasing; it uses a 4 way electronic crossover to achieve precise tuning coherency.

All this is beautiful on a sheet, but let's see how it translates in musicality and technical performance in this review.


CONSTRUCTION&ACCESSORIES



The Cadenza uses a similar construction material and process than both DZ4 and S15, it’s made with a 3D printer machine and uses a soft matte plastic that is both thick and light.

The design will be hit or miss depending on your aesthetic taste. Personally I like it more than S15, it’s sober and elegant with a back plate made of carved metal with intricate reflection pattern and universal ears shaped front plastic shell. The nozzle is long, big and thick, so it can be worn in a deep or shallow fit way, if you have a large enough auditory canal.

On the top we have 2 pin female connectors that are flat in alignment of housing, it’s not recessed so all types of cable (apart QDC) will fit it, be aware to be cautious to not bend the pin when connecting it though.

All in all, I can understand some people finding the construction ‘’toy-like’’ but if the back plate is solidly glued and never falls, I feel the construction is good. I love the matte finish and comfortable ergonomics.



When it comes to included cable, we are quite spoil.It’s a high quality modular cable made of silver plated high purity copper with a total of 365 copper strands twisted in 2 big cores. We have 3 plugs to cover all our source needs (2.5, 3.5, 4.4). The cable design is very beautiful and has a metal cable splitter that is eye-catching. If effect audio was selling this cable, it would surely be 200$. Big plus: the plugs are L shaped!




Then when it comes to packaging, that’s another positive surprise since the box is a valuable accessory on its own. It is like a mini drawer for IEM accessories. I really like when a box can have a second life and will surely use this box for ranging my IEMs.
In terms of other extra accessories, the modular cable was enough to make me happy but we have a nice carrying case and 6 pairs of silicone eartips too.


SOUND IMPRESSIONS


(shallow fit using short wide bore Vocal ear tips not the one on this pic which is Balanced tips)


The tonality of the Cadenza can be summarized as smooth, balanced and safe. To my ears it sound warm neutral with a notable sub bass boost that had a safe mellow creamy slam and rumble to otherwise lean and buttery smooth musicality that has an harman target DNA without the thin or shouty mids going on, it’s among most natural sounding hybrid of this type I’ve hear, it remind me of YanYin Canon 2 at first listen but with lusher mids and more natural timbre and thicker darker treble.

The bass is warm and vibrant, it’s lush and not thin nor boosted in resonance, which is something I notice with all last letshuoer IEMs using this unique type of plastic that seem to have a damping effect when it comes to bass slam acoustic cavity reflection-resonance.
While bassy, the Cadenza isn’t a basshead IEM, it doesn’t deliver a hard thumping punch, the slam is a bit ‘’pillowy’’, which is cozzy for long listening free of hard hitting sound pressure.
It’s a dense and weighty low end, with plenty of juice and a colorful vibrancy that favor cello and double bass, adding a polished grunt and an appealing euphony.
The transition in lower mids isn’t sloppy nor feeling detached and clinical, it flow organically with other BA driver, it match the timbre too, which can even make you question yourself about listening to a 1DD+3BA hybrid since it’s so cohesive in timbral and tonal balance that it feel like listening to an excellent planar IEM.
This type of bass don’t distract the listener by dominating the mix, it serve as a meaty sit for the fundamental as well as enrich the timbre richness, this is a versatile bass performance that suit very well jazz but deliver enough weighty boom for electronic, pop, soul and R&B too, this is for controlled lush rumble lover too since the sustain is tactile and gently boosted without excited paced release.
Music styles that do less well will be fast aggressive rock, electric bass lack a bit of grit and proper bite as well as kick drum don’t deliver nervous thumping, we can say it delivers rock music in a warm, dark and overly smoothed macro dynamic way.
Overall bass is the guilty pleasure part of Cadenza adding warmth and a thick addictive rumble that favors the tone of instrument before it’s texture or clarity, it excels with the cello so if you're a fan of this instrument you’ll be in for a lot of joy.

The mid range is very focused but lean in dynamic, which can make me consider these IEM as near mid centric since both male and female vocals are upfront and fully bodied, but smooth and natural in timbre too.
The piano too is full in presence, but softens in definition sharpness and texture grain, the note has plenty of weight and sustain-release isn’t compressed, it blossoms fully and warmly. Piano notes stay in place with a controlled dynamic that doesn't favor higher pitch range, this is what I mean with focused mid range, something that isn’t too unbalanced in upper mids loudness nor lacking too much lower mids sweetness.
Those sensitive to sibilance, shoutyness or upper mids agressivity will find the mids cozzy, those that tone color over texture details too, because we are in slightly dark mid range territory, it’s not the most open and crisp mids, nor the most transparent or well defined.
I find the vocal to sound better in lower range, like alto and contralto for female singer like Arooj Aftab breathy lush voice is more open in presence and complete in harmonic than soprano like Arianna Saval that feel a bit damped-lowered in tone, this mean male vocal sound quite good too.
I can’t overlook the fact that midrange feels a bit foggy and lacking in definition sharpness and spatial clean clarity, it’s not a very informative mid range in terms of micro details nor the best in terms of precise imaging.
It’s a safe mid range without any edgy texture spike nor loudness war between instrument, it’s a calm and contemplative center stage with filtered timbre that just keep sweetness of tone, it’s warm and permissive, it grow on the listener more he listen to it but never wow it with macro dynamic liveliness nor the crispness or openness of spatiality.
Overall mids will be perceived as recessed by some listeners due to their lean nature in dynamic, so if you need a lot of upper mids presence brightness look somewhere else.

The treble is mostly dark with just an extra brightness spice in the upper treble to add minimal bite and crunch to attack, still it’s very safe and don’t expect sparkle or brilliance since there is barely none (BA can’t produce proper brilliance wtv price range).
It’s not a thin treble, acoustic guitar sounds meaty and full in tone, quite natural but just a hint scooped in proper note release, still it sounds well balanced within other instruments and its presence is bright enough to not be put in second stage when it’s not supposed to.
The percussions are well layered and don’t dominate the mix, they aren’t aggressive nor splashy but complex percussions variety will get some sound info get lost, it’s not very easy to follow each cymbals and when if go very speedy the lack of proper attack lead sharpness and texture will make the readability even harder.
Simply put it’s not an analytical treble at all and there is nothing to get wowed about, the rolled off extension after 10 kHz is my main qualm as well as overly damped attack edge.

The soundstage is very ear tips dependent and even with short wide bore tha open it up it’s average wide, above average tall and under average deep. It feels like a big ‘’helmet’’ you put your ‘’small’’ head in, it’s holographic and immersive, you put yourself in the middle of music and can feel part of the band sometime.

While not bad, the imaging is not a highlight of the Cadenza, macro dynamics feel foggy in terms of sound layers blend, even if layering is decent it’s not well defined in ‘’enveloppe of presence’’ so you struggle to precisely position each instrument. Bassists are easiest to pinpoint, then mids instruments will be very centered but if there are a high amount of them it will multiply macro imaging darkness.




SIDE NOTES

These have both rather low impedance (15 ohm) and sensitivity (104db), this mean Cadenza are easy enough to drive but will benefit extra dynamic heft from proper amping gain, cleanest amping is the best but these don’t seem that capricious about impedance gain, anything 1 ohm or lower should do, i’ll suggest a minimum of 100mW@32ohm to be sure the dynamic is awake which will translate into more open and better articulated spatiality.

When it come to eartips, i find short wide bore (vocal) eartips the best when it come to soundstage and presence of instrument fullness, its hint warmer and bassier as well as more mid centric than Balanced ear tips, which compress spatiality and push forwards upper mids, with those, treble is sharper so percussions are more snappy but i miss stereo openness and smoother balance of wide bore ear tips.

Then when it comes to cable, it’s true the Cadenza benefits from even higher quality than the stock one which is very good and doesn't justify an urgent upgrade.
If I use the Letshuoer Nebula cable timbre become smoother and less noisy, bass is lusher and more complete and dense in tone, mids aren’t as edgy and boxy and treble is less splashy, in other word: dynamic is better control, without any intensity spike and Cadenza sound notch warmer and more mid centric. I prefer this cable pairing yet don’t understand why it isn’t a modular cable. Quite a bummer in that regard since this cable is quite expensive (165$)



COMPARISONS



VS HISENIOR OKAVANGO (1DD+6BA-300$)

The Oka is more W shaped and bassy as well as a notch brighter, it’s less smooth and lean sounding than the more neutral and darker Cadenza.

Oka bass have weightier and more impactful mid bass, the sub bass is slightly less extended and articulate in bass line, while the kick is chunkier and less warm-dark, rounder and better defined in punch. Basshead would prefer the Oka while the purist will prefer Cadenza. Bass tone goes to Cadenza too, bass lines are less resonant and boomy as well are lusher but the punch is more mellow and dull.

Mids aren’t has cohesive in timbre with DD bass and show that more BA of inferior quality isn’t the best choice for the Oka in term of tone balance since the timbre is more grainy and thin, yet it’s less dark and static than Cadenza, better layered, clearer and more open as well as higher in resolution and micro details, the attack feel faster and less damped-smoothen too. But the vocals of Cadenza are notably more enjoyable to my ears.

The treble is notably superior with the Oka, it's more snappy in attack, more extended and airy as well as more generous in effortless micro details. Percussions are better defined and extracted, they are sharper in definition and less euphonic and thicken in timbre.

Soundstage is notably wider and deeper with the Oka, not competition here.

Same for imaging, which is quite dependent on treble capacity, so while the tone of 6BA is harder to match the layering and imaging capacity sure is more capable.

All in all, the Okavango is without a doubt superior to Cadenza 4 in terms of plain technical performance like imaging, attack control, macro dynamic and clarity but timbre and tonal balance wise the Cadenza is more natural and offers more pleasant vocal and lusher thicker bass too.



VS QOA AVIATION (1DD+3 knowles BAs-200$)

Aviation is slightly brighter and more W shape and energetic.Cadenza feel leaner in dynamic and more U shape in balance as well as darker in resolution

The bass hits harder but doesn’t rumble as much and isn’t as thick and lush, separation is clearer and kick drum is more textured, the attack is better controlled and faster, it has wider headroom after impact. Cadenza is all about sub bass thickness and lushness, which is more captivating and musical in its singularity but when it comes to mid bass the role changes and its QOA that entertains more.

Mids are crisper, more open and energetic with QOA, it has more note impact as well as less lean dynamic, female vocals are more bright and upfront yet still lush and as thick as Cadenza, it’s more textured and the attack lead and bite is superior too. Cadenza mids suddenly sound quite muted and I need to crank up volume to wake up enough of the dynamic, in that regard QOA is more previsible and coherent in its macro dynamic loudness balance.

The treble is brighter, more snappy and analytical with QOA, it has more air and sense of speed is greater as well attack lead has more bite so the percussions are easier to find and follow but some instruments like electric guitar can be borderline splashy. Cadenza is safer and darker-smooth in balance.

Soundstage is about the same wide but slightly deeper with QOA.

Imaging is superior in terms of sound layering separation which is more articulate and presence of instrument is more underline too.

All in all, the cheaper Aviation is superior in technical performance and I do prefer its more lively and fun tonality too, but treble sensitive people will most likely prefer the Cadenza 4. It must be noted construction is superior too (and sexier) with Aviation.


CONCLUSION



Once in a while I have to use the term ‘’Jack of all trades, master of none’’ to summarize an IEM persona and this fits the smooth versatile tonality of Cadenza 4 perfectly. In this case, it's a compliment, it mean it's so well balanced I can't fault anything in term of tonal cohesion.

I will never use this descriptive for too bright or too warm IEM, nor for clinical-neutral one, and the Cadenza can feel refreshing in it’s safe but lush, dark and gently bassy U shape tonality….if their DZ4 didn’t exist because both these IEM are very similar in musicality, so you can see the Cadenza as direct niche upgrade to this very IEM.

And yes, we are in warm harman target territory à la Simgot EW100 and then i would say direct upgrade to the Cadenza 4 is the EJ07M which I suggest you to directly jump to since technical performance is from another level and can compete with most sub-1000$ IEM out there.

The fact i'm not suppose to love harman tuning yet love the Cadenza mean that your aren't obligate to endure shouty or thin mids with all harman target based IEM, this is the solution for those who can't stand the Moondrop and Crin approach of harman target. I will even say, this is the solution for those that find Simgot harman tuning too bright too.

Since I love both DZ4 and Cadenza 4, i think the tonal balance ideal of Letshuoer reach more my soul and my concept of musicality where timbre and tone fullness is of prime importance. One thing sure, these IEM are a statement of refinement when it come to tonal balance but it isn't made for basshead and treble head nor those seeking intense Wow effect.

All in all: Highly recommended!




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PS: I want to thanks Letshuoer for sending me this review sample as well as giving me white card for full freedom of thoughs. As always, i don't have direct affiliation and make zero $ with this review.

You can order the Cadenza for 230$ (pre-sale price, msrp 250$) here: https://letshuoer.net/products/letshuoer-cadenza4-wired-iem-hifi-earphones-in-ear-monitor

DISCLAIMER

I would like to thank Letshuoer for providing this review unit.

The Cadenza 4 can be gotten here: https://letshuoer.net/products/letshuoer-cadenza4-wired-iem-hifi-earphones-in-ear-monitor (no affiliate links).




SPECIFICATIONS

• Driver configuration: 10 mm beryllium-coated dynamic driver + 3 balanced armature drivers (1 Sonion and 2 Knowles BAs)
• Frequency response: 20 Hz - 40 kHz
• Impedance: 15 Ω
• Sensitivity: 102 dB
• Cable: 2-pin, 0.78 mm; silver-plated monocrystalline copper cable; modular plugs for 2.5 mm, 3.5 mm and 4.4 mm termination
• Tested at: $249 USD

ACCESSORIES



Other than the IEM, these are included:
- 3 pairs of wide-bore "vocal" silicone eartips (S/M/L/)
- 3 pairs of narrow-bore "balanced" silicone eartips (S/M/L)
- Cable
- 3 Modular plugs (2.5 mm, 3.5 mm, 4.4 mm)
- Hard carrying case

The accessories are quite generous for a midFI set, perhaps only lacking in foam tips.

We have 2 variations of silicone tips included. The wide-bore "vocal" ones boost the upper frequencies as per their name sake, adding air and soundstage; the narrow-bore "balanced" ones increase bass but compress staging slightly.




The stock cable is a 2-pin silver-plated monocrystalline copper one, and is one of the better cables I've encountered. It is well-braided, with minimal tangling, and comes with a chin cinch. Microphonics are minor, and the best part is that it comes with 3 modular plugs - 2.5 mm, 3.5 mm and 4.4 mm - thus ensuring that the Cadenza 4 can be paired with a myriad of balanced and single-ended sources.




Last but not least, we have a round hard screw-on carrying case. It is lined internally with a soft material, while the outside is as tough as a rock. Certainly a very useful case to protect the held contents.

The rest of this review was done with the stock cable and stock narrow-bore silicone tips. No aftermarket accessories were used, so as not to add any confounders to the sound.


BUILD/COMFORT



Letshuoer has utilized Heygear 3D-printed resin for the shells of the Cadenza 4, and it is built solidly. The housings come in a white matte finish, with a CNC anodized aluminum alloy faceplate.

The Cadenza 4 is one of the best fitting IEMs, with smooth internal aspects and a concha protrusion for stability. It is quite light too, so this IEM can be used for marathon listening sessions without discomfort.



Despite being vented, isolation is solid, and this IEM can be used surely in noisy places. I didn't find any driver flex on my pair.


INTERNALS

The Cadenza is a 4 driver hybrid comprised of a 10 mm beryllium-coated dynamic driver + 3 balanced armature drivers (1 Sonion and 2 Knowles BAs).

These prized drivers are linked via 3 acoustic tubes with a 4-way crossover. Incidentally, these acoustic tubes are meticulously manufactured via 3D-printing, to a 50 um specification.


DRIVABILITY

I tested the Cadenza 4 with the following sources:
- Apple dongle
- Cayin RU7
- Chord Mojo 2
- Fiio KA11 dongle
- Fiio KA17 dongle
- Khadas Tone Board -> Schiit Asgard 3 amp
- Questyle M15 DAC/AMP dongle
- Sony Walkman NW A-55 DAP (Walkman One WM1Z Plus v2 Mod)
- Sony Walkman NW A-55 DAP (Walkman One Neutral Mod)
- Sony Walkman NW WM1A DAP (Walkman One WM1Z Plus v2 Mod)
- Smartphone

This IEM is relatively easily driven, but will scale a bit with juice.


SOUND & TECHNICALITIES


Graph of the Letshuoer Cadenza 4 via IEC711 coupler.

Tonally, the Cadenza 4 sports a refined neutral tuning with an element of sub-bass boost. It is uncoloured and "reference-like", and is a kindred spirit for purists who do not want something too V-shaped or flavoured in signature.

This is a sub-bass focused IEM, with quite deep sub-bass extension. Quantity is just a bit above neutral, so bassheads may need to look elsewhere. What the Cadenza 4 cedes in quantity, it makes up in quality, with a very textured and nimble bassline heard, with no mid-bass bleed.

The lower midrange is neutral, with excellent clarity and transparency, in view of no bass encroachment. This allows instruments to be easily layered on a dark background. This is a double-edged sword, as there is a bit of thinness in the lower mids, so those that want a more lush and dense note weight might need to consider alternatives. The upper mids are forwards but not overly shouty.

The Cadenza 4 has a resolving treble, without veering to sibilance or harshness. High-hats and cymbals are not splashy, although upper treble does have a roll-off.

There is minimal BA timbre, though as stated above, note weight is a bit thin. For folk who yearn for a tinge more bass/body to notes, do select the narrow-bore eartips rather than the wide-bore "vocal" ones.

In terms of technicalities, the Cadenza is quite a beast. Soundstage is expansive in width and height, with imaging and layering a strong suit. Micro-details are captured well, for something not overly steroid boosted in the treble. Transients are fast and crisp.


COMPARISONS

Comparisons were made against other midFI hybrids. Planars, single DD and BA types are omitted, as the different transducers have their own pros and cons.




AFUL Performer 5

The Performer 5 is a U-shaped set with more bass. However, the Performer 5's bass bleeds a lot, with a one-noted bassline heard, lacking all texture.

The Performer 5 has more marked BA timbre (though it has a thicker note weight). The Performer 5 is a league behind in technicalities, losing to the Cadenza 4 in soundstage, micro-details and imaging.


QOA Aviation

The Aviation is another U-shaped set with more bass quantity. However, the bass isn't as fast and clean as that on the Cadenza 4.

The Aviation has a thicker note weight and a more natural timbre. However, when it comes to technical chops, the Aviation is weaker in soundstage, micro-detailing and imaging.


Penon Fan 2

The Fan 2 is a warm neutral hybrid. It has a much lusher and thicker midrange than the Cadenza 4, with the Fan 2 furnishing a more euphonic soundscape as such. Timbre is a bit more natural on the Fan 2.

The Fan 2 is inferior in technicalities, with a less expansive soundstage and poorer layering/imaging.

The Fan 2 Achilles' heel is its very long nozzles, which may cause discomfort for users. The Cadenza 4 is much better fitting by miles.


CONCLUSIONS



The Cadenza 4 is a neutral-head's delight, presenting a rather uncoloured and "reference" soundscape. It has excellent technical chops - imaging and soundstage are aced in particular - and coupled with the transparent tone, comfortable fit and top-notch isolation, the Cadenza 4 would be a solid option for audio work, mixing and stage monitoring. The treble is not overly steroid-boosted, yet with resolution still decently retained. Bass is fast and clean, with a clear midrange.

In terms of externals and aesthetics, there isn't much to fault, with the Cadenza 4 being generously accessorized - with a hard case and modular cable - and this is combined with easy drivability and the aforementioned stellar comfort and isolation.

No doubt, some consumers might find the Cadenza 4's tonality overly bland, especially bassheads or those wanting a transducer for head-banging fun. Admittedly, the Cadenza 4's note weight is a bit willowy, but utilizing the provided narrow-bore tips or pairing with a warmer source may beef up its body to some extent.

In a sea of hackneyed Harmanish fare, the Cadenza 4 is a refreshing breath of change, and would certainly be a recommendation for purists, neutral-heads and folk looking for an audio tool for studio or stage work.