At the time of the review, the LZ-A2 was was on sale on Amazon and the Aliexpress website. Here are a couple links to their listing of the product:
http://www.amazon.com/gp/product/B017Z8AWHA?keywords=lz%20a2&qid=1449320297&ref_=sr_1_1&sr=8-1
http://www.aliexpress.com/item/2015-Newest-LZ-A2-Dynamic-and-Armature-3-unit-Headphones-HIFI-Fever-Earphone-As-K3003-DIY/32501370155.html?spm=2114.01020208.3.1.I4NI5c&ws_ab_test=searchweb201556_2_79_78_77_80,searchweb201644_0,searchweb201560_1
Introduction
Before we begin I feel it’s important for everyone to understand what a hybrid in-ear monitor is and how it works.
For a long time in-ear monitor sounds were created by one of two different types of drivers. It was done by either dynamic or armature drivers.
Dynamic Drivers
Dynamic drivers are basically the same thing you see in a speaker at home, using ringed magnets, a round voice coil and a cone to move air and produce sound. Dynamic driver sound can be manipulated by changing the venting on either side of the cone. Because of the need to utilize venting on either side to tune the sound, isolation is more of a factor/issue with dynamic designs. For the most part a dynamic driver is able to move air with more force than an armature driver, resulting in a more impactful and satisfying bass response, but often times have less detail and accuracy throughout the midrange and treble frequencies.
Armature Drivers
An armature is a similar in how it produces sound, but in a more controlled environment. They use magnets, a voice coil and a membrane, but it is done inside of its own independent housing. An armature driver uses an arm that suspends between the magnets and voice coils and is attached to a driving pin that leads to a membrane. This produces the sound which is then delivered through a port on the housing of the armature. They have an exact frequency output that has been predetermined by the armature manufacturer. The result is a more controlled and accurate sound, giving an opportunity for manufacturers to use multiple armatures in combinations to produce one cohesive and customized sound. Isolation is less of an issue with an armature design, allowing listeners to enjoy their earphones at lower volumes. Earphone designers can take a combination of armature drivers and tweak them with resistors, crossovers and dampers to shape the sound. For the most part armature drivers are known deliver a level of detail and accuracy that trumps many dynamic drivers, but often times without the same impactful bass.
Hybrid Technology
With each driver explained, it is clear that each type of technology brings something different to the table. Where one is exceptional, the other is not. This is where hybrid technology comes into play. It is the concept of utilizing the “best of both worlds” from dynamic and armature drivers, turning it into one pair of kick arse in-ears. Bass tones are produced by a dynamic driver while midrange and upper frequencies are presented with armature drivers. This is usually done with a single dynamic driver in combination with one or two (sometimes more) armature drivers. This not only makes hybrids more costly because of the number of components, but also more of a challenge for manufacturers to make one cohesive sounding earphone. Hybrid technology is amazeballs when it’s done right, but can also be a major letdown when not executed correctly. Over the last couple years we have been treated with some really amazing hybrid technology, but usually the more successful designs come at a premium price.
A few companies have released hybrid in-ears hoping they can fall under the one hundred dollar price point and compete with the big names in hybrid monitors. Despite the fact that they fell under the price barrier, almost all have failed in terms of bringing the goods in terms of overall fidelity. Well, that is until now. Today I have the pleasure of introducing the first hybrid in-ear monitor that myself as well as other trusted Head-Fi participants can say has “cracked the code” and brought a product to market with sound quality that competes with just about EVERY hybrid in-ear monitor there is. Introducing the LZ-A2.
When I first heard about the A2, a few guys who got their hands on them were raving about them, but to be honest I try to not succumb to the hype these days and let my ears be the judge. When my friend Charlie said he had some review samples available I had to jump on the chance. Of all the reviews I’ve written this year, this is probably the one I’m most glad I’ve participated in. The LZ-A2 was more than a pleasant surprise, it was a revelation for hybrid in-ears.
Disclaimer
I was given an opportunity to review the LZ-A2 in exchange for my honest opinion and review. I am in no way affiliated with LZ. I would like to take this time to personally thank Charlie and the guys at LZ for the opportunity to cover such a great sounding earphone.
My Background
I AM NOT a numbers and graphs audiophile or sound engineer. Personal audio enthusiast? Absolutely! Headphone junkie? Possibly…
There’s something about quality DAPs, DACs, Amplifiers and Earphones that intrigues me, especially if they can be had for low prices. I will buy the $5 to $500 earphone that looks promising, in hopes that I will discover that one new gem that can compete with the big names in this industry. If you look at my Head-Fi profile you will see that I have purchased MANY different headphones and earphones, ranging from from dirt cheap to higher end products. For me, this hobby is more about getting great price to performance ratio from a product, and have a variety of different gears with varying builds and sound to mix and match. With personal audio gear, we tend to pay a lot of money for minor upgrades. One thing I’ve learned over the last few years is that just because a headphone has a higher price tag, it doesn’t mean that it has superior build and sound quality.
I’m always looking for great audio at a great price. I’m after headphones and IEMs that give me the “WOW” factor. I can appreciate different builds and sound signatures as long as they are ergonomic, and the sound is pleasing to the ear. It is my pleasure to share my experiences with audio products and make recommendations based gear I have owned and used.
REVIEW
The LZ-A2 was shipped to me by a friend for review. I didn’t receive a formal packaging, and to be honest I’m not sure if these things to ship with packaging. I don’t know, and honestly don’t care. If they cut corners to put all their resources in the package it is well worth it.
Specifications
*Product Name: LZ A2 Dynamic and Armature 3 unit Headphone
*Brand: LZ
*Model: A2
*Type: In-ear
*Impedance: 16Ω
*Headphone sensitivity:120±3db
*Frequency range: 2-24000Hz
*Interface: 3.5mm
*Cable Length: 1.2m±5cm
*Weight: 25g
*Color: Gold
*Whether with Mic: Optional
*Headphone plug type: Through Hole
*Headphones category: HIFI, Monitor
*Applicable type of music: Classical symphonic concert
*Drive unit: dynamic and complex double unit armature (3 unit drive)
Accessories
*1X semi-rigid cloth covered zipper clamshell case
*1X shirt clip
*1X pair of frosted over-ear guides
*1x pair of silicone fins (for securing fit, similar to Dunu fins)
*1X white silicone dual flange tips (M)
*1X red memory foam tips (M)
*3X red/gray silicone single flange tips
Housings
The LZ-A2 housing is a combination of machined aluminum and plastic. It’s a gold powdercoated metal barrel shape with a rounded metal aluminum back. The back of the housing has a vent for the dynamic driver. The front of the housing and nozzle are constructed of attached plastic. The nozzle is a weird shape and is very wide and short. This makes tip rolling, and getting the earphones to seal well a challenge.
Cable, Y-Split, Cable Jack, Strain Reliefs
The cable is a semi transparent rubbery material similar to the Fidue A73 and A65. It has very little memory and a bit of spring. The cable sheathing has a tendency to grip anything it rubs against which can be a hinderance but also works very well for over the ear fitment. The Y-split is a very simple black metal jacket. There is a black plastic chin slider attached that works well and comes in handy (especially with over the ear fit)
The cable jack is a black straight barrel design that is very simple and sturdy. It follows the same theme as the Y-split and has a somewhat generic LZ logo printed on it. Strain reliefs at the housings and jack are short rubber jacketing that goes in between the cable and the housings/jack. They seem discreet and adequate, but could be better done.
Functionality
There is no microphone or remote. The LA-A2 is a plug and play device designed for sound quality. Plug in, play music, enjoy the sound, repeat.
Ergonomics, Fit and Microphonics, Isolation
I had a hard time coming up with a tip that made the LZ-A2 fit because of the wide and short barrel. None of the stock tips, guides, fins helped me to come up with a consistent and secure fit. What I discovered it that using a smaller tip than I normally do helped me achieve a good seal. Despite tip rolling being more of a challenge than usual, I was able to stretch a pair of medium Sony silicone tips around the nozzle and they work excellent.
The A2 can be worn under or over the ear. Once a good fitting tip is found, the straight barrel promotes a fairly simple and comfortable wearing experience. As is the case with most earphones, I personally preferred an over the ear fit in combination of the chin slider to snug things into place. Your mileage may vary, just make sure to use all the accessories and tip options you can come up with to try to get the best and most comfortable fit. Just like with all in-ear monitors, the better they seal your ears, the better they will sound.
Sound Review
I did my demo with my usual gear. I used an LG-G3 with the latest firmware for portable and smartphone use, and either my Shanling H3 or Sony Walkman F806/Cayin C5 amplifier for a high fidelity portable use. For desktop use I used my Toshiba Satellite Laptop in combination with a HIFIMEDIY Sabre ES9023 USB DAC/Bravo Audio Ocean Tube amplifier with a Mullard 12AU7 tube for higher impedance, and a Fiio E18 USB DAC & Amplifier in both high and low gain. Both were run at 24 bit, 96000 Hz. I also tested them with other DAPs and amplifiers as well. I used Google Music downloaded in its highest download quality (320 KBPS) and I also streamed FLAC via Tidal streaming service. I also used purchased and downloaded tracks in MP3, FLAC, WAV and DSD. I make sure that any gear I test has sufficient playtime before writing a review.
I used my usual same songs for testing gear:
“Limit to your love” by James Blake (bass speed, punch, response)
“Doin’ it Right” by Daft Punk (sub bass)
“Get lucky” by Daft Punk (bass to midrange transition resolution, male vocals)
“Madness” by Muse (soundstage, separation)
“Some nights” by Fun (soundstage and male vocals)
“The soundmaker” by Rodrigo y Gabriela (texture and imaging)
“Bassically” by Tei Shi (bass to midrange resolution, female vocals)
“Skinny Love” performed by Birdie (female vocals, acoustic playback)
“One” by Ed Sheeran (male vocals, acoustic playback)
“Outlands” from the Tron Legacy Soundtrack (symphonic presentation, imaging)
“Sultans of swing” by Dire Straits (detail, separation, balance)
“And Justic for All” by Metallica (driver distortion, treble response, rock playback)
“Ten thousand fists” by Disturbed (driver distortion, treble response, rock playback)
Note: Other tracks were used, but the listed songs were primarily used to asses and break down the gear’s response.
Source Selection
These earphones are incredibly easy to drive. I couldn’t turn the A2 up to half volume on my smartphone before they became too loud to listen to. There is no need for amplifiers or high power sources with the A2, nor did I find any benefit from using them.
The bass forward tuning makes them somewhat forgiving with poorly recorded music and low bit rate files, but they also scale well with better files because of their incredible detail. From what I’ve experienced, the A2 sounded most impressive with a neutral source and high bitrate music files.
Sound Signature
I was blown away by the sound quality from the first listen. The first thing that came to mind was my favorite earphone, the Fidue A83. They have a similar tuning with a forward and dynamic bass response with a slight V-shape from what I hear and incredible resolution from top to bottom. They are a combination of musicality and detail that definitely gives me that “WOW” factor I’m after.
LZ-A2 measurement (left and right channels) taken by my Vibro Labs Veritas. This device is not %100 accurate, but accurate enough to give you an idea of the LZ-A2 sound signature.
Bass
Bass on the A2 is a dynamic combination of punch and rumble that I find to be very satisfying and works with all genres of music I listened to. It definitely has a forward presence, and the bass extends well into sub bass regions. There is a considerable amount of midbass, but it is tastefully done, and the way the armatures are tuned in combination with the dynamic driver it doesn’t make male vocals seem overly weighted.
Midrange
The A2 midrange puts on a clinic in terms of neutrality and resolution. the way the sound is split it is very cohesive yet still separates the sound so each frequency isn’t overshadowed. It reminds me of a very high end stereo system where high quality speakers are aided by a sub woofer. What I mean by this is the midrange distinctly sets itself apart from the forward bass response with a very airy, natural and well defined midrange that gives me that “best of both worlds” dynamics and separation that elite hybrids have. Because of the forward nature of the bass, some people will say they are warm, but listening closely I don’t get that impression. What I hear is a very well done dual armature supported by a dynamic driver bass boost that is very tastefully done. Upper midrange is somewhat relaxed but not significantly rolled off. I like how this tuning takes a lot of the edge off of most instruments and vocals and prevents the A2 from being shouty with any genre.
Treble
Treble is somewhat relaxed with a small bump or spike somewhere up top that gives it a nice sense of energy. From what I hear, It might be somewhere around 3 kHz. It’s enough to put a nice bite on vocals and adds needed life to the upper frequencies without going overboard. Despite the lift in upper frequencies the overall impression is slightly V-shaped yet still relaxed, and very entertaining.
Soundstage and Imaging
Because of the tuning and extension on both ends of the frequency response in combination with the incredible resolution, I will say that the soundstage is great. It’s not best I’ve heard but definitely in the top ten. Imaging is also better than average from what I hear.
Comparisons
Fidue A83 ($275 to $350 USD on many sites)
The A83 sits on the top of my list of favorites because it checks every box in terms of what I look for in an in-ear monitor. Their stock cable is ridiculously awesome, and overall design is pretty spectacular and well thought out. They offer an incredible case and accessories package, and the sound? Amazeballs!
You might be asking yourself why I would compare a budget in-ear monitor to a flagship model that costs almost four times more. Simply put, THE LZ A2 SOUND QUALITY RIVALS THE FIDUE A83, AND MANY OTHER TOP OF THE LINE IN EAR MONITORS. I’m confident enough to say that if I did a blindfold test and popped both of these in your ears and asked which one was more expensive, I’m fairly confident you wouldn’t be able to tell.
Yes, the A83 destroys the A2 in terms of ergonomics, fit, and accessories. I won’t even go into detail on that, just know the A83 is better at all of them.
BUT, in terms of sound its really a close contest. If Fidue released the L2 sound in their next generation model, I would probably buy it. I consider the sounds to be sidegrades to each other. Bass response on both earphones is eerily similar, almost identical to my ears. Even lower midrange is somewhat similar from what I hear. The A83 is a more lively and aggressive tuning that infuses more energy to the track. I noticed more forwardness going into mid and upper midrange tones. Extension is better with the A83, but to be honest it almost took away from the listenability to my ears as compared to the A2. The biggest difference between the two was the more relaxed and laid back upper midrange of the A2, which in my opinion sets up for longer listening sessions but at the expense of losing a bit of excitement and energy. Although I feel the A83 might impress a few more people, I can almost say that for the sake of longer listening sessions, I might reach for the A2 more often.
Sony H3 ($300 to $350 USD on many sites)
So, here I go again, comparing the A2 to another top of the line hybrid that costs almost four times more....
The Sony H3 is a beast of an earphone, featuring detachable cables, a unique fit, and awesome accessories package. Again, it’s not a contest in terms of build quality and accessories, the H3 wins in these categories.
Now for the sound! The A2 is a flat out better sounding earphone to my ears as compared to the H3. Better bass, better midrange, better treble, period. Bouncing back and forth between the two, the A2 makes the H3 sound like a midbass bludgeoned cluster of haziness. While the H3 does offer some great separation of sounds and good timbre, it can’t hold a candle to the A2 response. The A2 is more responsive, more detailed, and much more clear. While many like enjoy the H3 for modern genres, the A2 offers the more audiophile friendly experience, while still offering some bass thump.
Conclusion
The fact that I did comparisons to earphones that cost MANY times more than the A2 should tell you just how great these things sound. Although the build and design could be better, their price tag makes this a non issue for me. When someone tells me they are thinking about purchasing their first hybrid in-ear monitor without breaking the bank and can’t decide what to get, I am going to recommend the A2 one hundred percent of the time. LZ has taken the words budget and hybrid and combine it into one awesome pair of earphones with sound that is truly incredible.
Thanks for reading and happy listening!