Spirit Torino IEM TWIN PULSE BERYLLIUM

Spirit Torino Twin Pulse Beryllium In Ear Monitors


Disclaimer

I have been provided with Spirit Torino Twin Pulse Beryllium IEMs as part of an audition tour by Aural Café community and @pradiptacr7 . I am in no part related to the brand and all impressions given hereby are my own.



About

Spirit Torino is an Italian brand, which is quite popular for their range of headphones, released their new IEMs, Twin Pulse Beryllium, a dual dynamic driver IEM made with their patented twin pulse scaled isobaric system. They are housed in CNC machined aluminum earpieces, which are exceptionally made and designed in true Italian essence. They look and feel beautiful. Their package is well covered, keeping in mind present day requirements. It comes included with two cables, 3.5mm ended cable and 4.4mm ended balanced cable, 3 pairs of foam ear tips, 4 pairs of silicon ear tips, 3 different sound filters for finetuning sound signature. They are fairly easy to drive, but can scale well with powerful accessories, like most of the dynamic driver-based IEMs. It retails for 850 USD from official Spirit Torino and its authorized stores.




Sources Used

I had used my DAP, Cayin N7 and DACAMP, Earmen Angel for review purposes.





Sound Impressions

Pros

• Excellent Tonality
• Excellent Timbre
• Very Good Bass
• Very Good Technicalities
• Very Good Treble Extensions
• Excellent Design & Build Quality
• Good Set of In-Box Accessories
• Filter Set For Sound Tuning
• Silver for balance, Red for warmth & Black for airiness

Cons

• Very Recessed Mids.
• Slightly Leaner Mids

Coming to overall sound impressions, these IEMs sound very good right out of the box. Musical and enjoyable, and at the same time technically very capable. The moment you hit play, you will instantly love its natural tonality and timbre. Its bass is of very good quality and quantity, has very good rumble with faster decay. Not basshead levels of bass, but quality is excellent and does extend quite deep. Bass doesn’t creep into other frequencies and maintains clear space while transitioning into lower mids. Transients are fast. It has smooth transition from bass to mids to treble. Coming to mids, for me this the area where this IEMs falter big time. Mids are very clear, spacious and has good details. But, I found vocals to be too recessed for my tastes, they sound literally as if the singers are placed at very back end of the stage. And they sound little lean too. Apart from this, everything else is very good. Be instrument separation, and placement. Upper mids extensions are good too, only if mids are placed at the center, it would have been an even better experience. You can clearly point out from where a particular instrument’s sound comes. Changing my source to Cayin N7 slightly remedied this issue for me, but still, it is what it is. Guitars and cymbals are crystal clear and precise in how they sound. Overall detail retrieval capabilities are very good for the price. Resolution is quite good for the price. The stage has very good depth and width. There’s no congestion of any sort even when complex songs are at play. Imaging is very precise and accurate. Every note is clearly differentiated from the other. Treble is very well done. Very good extensions, not fatiguing at all. Though a little more air and sparkle would be a better addition, but excellent, nonetheless. The above impressions are based on silver filter. Changing from silver to red filter brought one change which I found lacking earlier, which is mids started to sound little thicker, and added musicality. It also brought a little more warmth to the bass region. Other than these two changes, everything else was on par with the silver filter. So for those who prefer a little more warmth and thickness in mids and bass sections can use red filter, and for those who prefer balanced and cleaner presentation can go with silver. Now shifting to black filter, the immediate change you observe is the addition of airiness to overall sound signature. IEM sounds more energetic in this filter compared to the other two, maybe bright for some, but not for me. But it introduced little graininess in upper treble. For me, silver filter is the choice, but I wish it had some of the thickness in mids found in red filter. But, it's the more balanced out of the three.



Verdict

The Spirit Torino Twin Pulse IEMs are solid IEMs. Their tonality and timbre are top notch and quite addictive. These IEMs are very good in technicality, detail retrieval and clarity. It has very good quality bass and treble. My only gripe with these is its mids section. It’s quite recessed and slightly lean. This can be remedied to an extent with use of the red filter and a source like Cayin N7, but still, it has those qualities in the end. Other than this the IEMs are exceptional overall.

Spirit Torino Twin Pulse



Disclaimer:

I’d like to thank Aural Café and Pradipta for including me in this tour. I was given an opportunity to audition and review the Spirit Torino Twin Pulse IEM and share my honest feedback based on my usage with my gear. There has been no monetary transaction or influence (or pressure) to write anything positive (or negative) about the IEM. The views expressed in this writeup, are solely mine and are based on my usage of the IEM for a week or so.




Introduction:

This is Spirit Torino’s first outing in the IEM space and by golly they’ve hit a home run with this one. The twin pulse IEM has a pair of dynamic drivers in isobaric configuration on each side with the earpieces made of CNC machined aluminum. The isobaric drivers have beryllium coated membranes. All in all, these earpieces look and feel fantastic and are “designed to faithfully reproduce sound” - as per their website.

The IEM comes with 2 cables, one 3.5mm SE cable with a 6.35mm adapter and a 4.4mm BAL cable. There are 7 pairs of eartips (Silicon, Memory Foam, and Dual Flange), 3 nozzle types, and a cleaning tool along with a leather carry case. The unit I received was unboxed but had all the accessories packed in a carry case.





For the purpose of this review, I used the Flare Audio Audiophile memory foam tips with the stock 4.4mm BAL cable with either Sony WM1AM2, FiiO M15S as sources, both with and without A&K PA10 connected as a balanced amplifier.



Sound Quality:

The Twin Pulse IEM has one of the best bass responses off an IEM I’ve heard. The dual dynamic isobaric drivers produce natural sounding bass that can be boosted to a certain level with the red nozzles that can take things to bass head levels. The slams are hard hitting, especially with the red nozzle, but even with the default grey nozzle, the bass has good impact. With the default nozzle, the bass sounds natural and complements the rest of the frequencies well. There is good presence in both the sub bass and mid bass regions. There is a nice sense of depth and warmth in the bass, and it thankfully isn’t muddy, nor does it bleed into the Mids.




The mids are again a highlight of the Twin Pulse IEMs. They’re clear, lush, somewhat forward in their presentation. The IEMs bring out the nuances in vocals beautifully and have a natural timbre when it comes to male vocals. Instruments too sound very natural for the most part. The Twin Pulse IEMs have some good and organic Mids.

The highs are crisp yet gentle. They’re in no way piercing or sharp. Especially with the grey filter, everything is well balanced, for those who’d like to have some more presence in the highs, the black filter might be a better choice, personally, I liked the IEM with the grey filter the best. The highs have fair sense of airiness and sparkle allowing micro-details to shine. The treble here is more suitable for those who like gentle and soothing highs, and this is likely not going to impress airheads.




In terms of technicalities, the Twin Pulse IEMs have very good separation, and the soundstage is great, both in terms of width and depth. Especially when amped, I’d compare the staging of Twin Pulse to the likes of IER-Z1R, it is immersive, wide, deep and holographic. Given the price point, I think the Twin Pulse IEMs push above their price point when it comes to technicalities.

As such, the Twin Pulse IEMs can be driven off a source like the WM1AM2 easily without the need of additional amping, but the IEMs open up considerably when amped, hence if you have an amp, I’d suggest trying it out with the amp, to bring the best out of this tiny beast.





Conclusion:

The Twin Pulse IEMs are excellent IEMs for those who prefer a balanced presentation and like to have some heft in their bass. Airheads may not be impressed by this IEM as the treble is gentle. Mids are a highlight and for Bollywood aficionados like me, the Twin Pulse IEMs are a great set to own. Fit might be an issue for some, but I personally didn’t have any issues with the fit.

SPIRIT TORINO TWIN PULSE BERYLLIUM IEM- A Concentration of Technology at the Service of Music​

Introduction: -

Spirit Torino is an Italy-based audio company founded by Andrea Ricci. It all started with collaborations with hi-fidelity stores in 1993 in Turin, Italy which is known for its numerous art galleries, restaurants, churches, palaces, opera houses, piazzas, parks, gardens, theatres, libraries, and museums. After starting with a series of electronic cabinets and pedestals crafted from mahogany and walnut in 1995 to becoming a record label for recording concerts in 2002, in 2007 they first began with modifying closed and open-back commercial headphones. Fast forward to 2014 Spirit Prototyping Laboratory was born to rework a significant quantity of headphones to meet the needs of audiophiles. Moving on to 2017 after lots of research and development the founder assembled the prototype of Twin Pulse, which became the first isobaric motor unit for headphones in the world. Spirit Torino presented “Radiante” in 2019 at the Tokyo Headphone Festival: the first headphone in the world with an external passive radiator, winning second and third place in the competition in April with the Super Legerra and the Twin Pulse and first place in November with the Radiante.

Today we will be reviewing SPIRIT TORINO TWIN PULSE BERYLLIUM IEMs at Aural Cafe which is SPIRIT TORINO’s first attempt at making a high-fidelity in-ear monitor.

Spirit Torino Twin Pulse Beryllium IEM launched in 2023 is Spirit Torino’s first offering in the world of hi-fi IEMs after coming up with many flagship headphones. Twin pulse beryllium is powered by 2 x 10mm dynamic micro drives Beryllium dynamic drivers in Spirit Torino’s patented twin pulse isobaric system (Cone to magnet setup) which is currently the hottest setup in today’s Audiophile world. Isobaric setup was prominently used in speakers but now many respected audio companies are implementing the same in their headphones and IEMs. One can read more about the isobaric setup through this link: https://vue-audiotechnik.com/isobaric-subwoofer-design/.

According to Spirit Torino, this setup helps in overcoming the transient speed issues of dynamic driver-based IEMs. Moreover, twin Pulse offers playback linearity calibrated on isophonic Fletcher-Munson curves (of equal sensitivity to the human ear) and can therefore be used as a reference tool to verify the timbre reliability of a recording. Spirit Torino Twin Pulse Beryllium IEM is priced at US$ 850.00.



Specifications: -

• Driver Technology: Twin Isobaric System
• Driver Configuration: 2 Dynamic Driver (10mm Beryllium micro drives)
• Impedance: 16Ω ± 10%
• Freq Response: 14Hz-33Khz
• Sensitivity: 114dB/mW @1kHz
• Cable: 1.2m Litz 392 Cores OCC Silver-plated + 8 Cores Silver
• Max Power Rating: 2mW

Disclaimer: -

We have received a small discount, and we are thankful to the amazing team at SPIRIT TORINO for it. We were also delighted with the opportunity to review it. However, the review reflects our honest opinions as always.

Packaging & Accessories: -

• Spirit Torino Twin Pulse Beryllium IEMs
• 7 pairs of Ear-Tips (Silicone, Memory Foams and Dual Flange)
• IEM Cable with 3.5mm Termination
• IEM Cable with 4.4mm Termination
• 3 Different Nozzle Filters
• 6.35mm Adopter Jack
• Leather Carry Box and Cleaning Tool
• Documentation

Check out the full unboxing video here,







IEM Build, Design & Fit: -

Coming from Turin, Italy, famous for its art galleries and museums, the team at Spirit Torino didn’t disappoint us from the very moment we unboxed. Everything inside the box from the IEMs to the cables, the carrying case, to the ear tips screams art and craftsmanship from the very go. We at Aural Cafe are pleasantly surprised by the quality of accessories rare to find in the sub-1000 US$ range. Even the packaging they’ve used very high-quality materials.



The IEM shell boasts of lightweight aluminium structure machined by high-precision CNC machinery, to rebuild the complex Twin Pulse isobaric system in miniature form. The proprietary complex Ventilated Pad system earlier implemented in Spirit Torino headphones evolved into the Micro Ventilation Pad System as it was necessary to rethink the micro-frame from scratch to calibrate the complex interplay of pressures generated in the acoustic chambers of the Twin Pulse system to ensure the dissipation of the extra pressures when inserting the In-ear monitor into the ear. The Micro VPS also allows the audiophile to select different sound signatures according to their needs by changing the provided three pairs of front filters. The IEM is designed in bullet form which is unique and will surely have a love-hate relationship with the different audiophiles. In our case, we did find it a bit difficult to use initially but after bending the IEM hooks slightly inward we were good to go and had no difficulties. The IEM is light in weight and provides above-average isolation. The artistic faceplate clones the Spirit Torino legendary Valkyria headphones and is actually a functional part of the driver setup.



Inside the Twin Pulse, employs two identical 10mm micro drivers with powerful neodymium magnets and Beryllium-treated membranes to act synchronously over the entire audio range, zeroing out typical micro-acoustic problems and dangerous phase interference without any crossover to minimize any kind of distortion. It comes with two sets of custom-made Litz SPC cables in 3.5 and 4.4 terminations along with a custom-made high-quality 6.3mm jack adapter. We are very surprised by the thoughts, research and development that has gone into designing each section of the IEMs and accessories in this beautiful piece of art which is “Made of Sound”.



Sound Analysis: -

Credits: Spirit Torino Officials

• Tonality: - From the very moment we put on Spirit Torino Twin Pulse Beryllium we are amazed by its unique yet musical and immersive hi-fi experience. The stock high-quality SPC cable also adds to the musical tonality of the IEM. According to the team at Spirit Torino, it is tuned for both audiophiles and professionals in the field of music who can use it for mastering and post-production. The tonality is borderline neutral with a musical tinge to the whole experience. The timbre of the instruments is lifelike real, and the IEM successfully takes us inside the live concert. We like the neutral grey filter in this regard, with the memory foam tips. There is a sense of control and yet at the same time lows, mids and highs flow like a river. The tonality is natural organic and fun.
• Lows: - With the implementation of the patented twin pulse isobaric system, the lows are surprisingly natural, organic, and dynamic in every respect. The bass is subtly tuned without any hint of muddiness in Mids. The bass not only has the right quantity and quality but exceptional control and speed all thanks to the unique isobaric system. While the red tuning nozzles add up to 3 dB of bass the black nozzles can reduce the same by 3 dB and can be helpful while listening to jazz. The mid-bass with red tuning filter sounds very fun and immersive while listening to EDM whereas the same is beautifully balanced on the grey reference filter (our favourite tuning filter). It comes a bit forward on the red filter. The sub-bass with just the right layering shows up beautifully while listening to the EDM genre, especially on the red filter. While listening to Starboy by the Weekend and Nakshatram by Jean du Voyage on Dethonray SG1 Gold with the black tuning filter the mid-bass is hard-hitting and deep with effortless sub-bass and solid male vocals. The bass on the black tuning filter is a bit light and becomes handier for audiophiles who strictly love reference-tuned IEMs.
• Mids: - The Mids on the IEMs are top tier with the right energy, resolution, and soul. The vocals are natural and organic without losing any control even in complex tracks. The Mids are more referenced in grey tuning filter and black while a tinge forward with the red filter. The IEMs show their power with solid lower Mids and male vocals in complex rock, metal, and Hip-Hop tracks. We loved listening to Godzilla by Eminem (grey tuning filter) with stock cable and silicone tips in Dethonray DTR1+ while with a tinge more resolution, the female vocals shine with black tuning filter, wide bore silicone tips in Aune M1p pairing with the Linum SuperBax cable setup. Michael Jackson’s Thriller would give you the thrill you might have missed before in this.
• Highs: - The Highs on the Spirit Torino Twin Pulse Beryllium are tuned in a very reference and balanced way (In Grey filter). The mid treble has decent sparkle and air keeping in mind the reference tonality of the unit. We at Aural Cafe love the treble on twin pulse beryllium with the grey filter, whereas it becomes a touch more transparent with the black filter and a bit warmer with the red filter. The treble remains organic and smooth across the high frequency without any sharpness where solid micro details are showcased more naturally and effortlessly. The treble is sweet along the transient response is super immersive and unique which hits the right point the same is showcased while listening to Yosi Horikawa’s Swashers, with PW Audio Monile Two Wire + Aune M1p + Spinfit CP145 tips.
• Soundstage & Imaging: - The Soundstage on Spirit Torino Twin Pulse Beryllium is top tier in both width and depth all thanks again to the patented twin pulse isobaric system. While listening to ‘Koi Faryaad’ a Hindustani Classical Ghazal by the great Jagjit Singh the highs as well as the lows hit just the right point without any lack ness especially in depth. the soundstage depth is where most sub-1000 US$ items really don’t shine but we loved the way it handles in Twin Pulse Beryllium IEMs and becomes handy, especially with the different genres of music. The Imaging on Spirit Torino is again top notch which is beautifully showcased while listening to ‘Shakti’ from Five Peace Band. Layering is showcased with solid control whenever needed in the track. We believe that the high-quality beryllium dynamic driver also helps a lot with sound staging and imaging. The soundstage becomes a tinge more open with Spinfit W1 tips.
• Synergy: - The Spirit Torino Twin pulse beryllium IEMs come with a decent 114db of sensitivity which makes it fairly easier to drive. It can become useful while walking and listening to music on the move with a decent dongle such as Aune Yuki or Hidizs S9 Pro Plus. But if you want to see the true colours we would suggest listening to Spirit Torino IEMs with a transparent DAP. It scales a lot with different sources, cables, and tips due to its true reference nature. We loved it a lot with the Dethonray DTR1+ and stock cable which to our surprise really complemented the reference tuning of the Twin Pulse Beryllium IEMs. When it comes to ear tips, we love the way it sounded with Spinfit CP145 although the stock tips also efficiently do their work. We also suggest using a high-quality cable such as PW Audio Monile two-wire version if you want to extract more from the unit.

Conclusion: -

Being in this hobby for the last 8 years we audiophiles at Aural Cafe are lucky and blessed to own and audition numerous high-quality items from different brands across the world. Well, each audiophile has their taste for IEMs and headphones, we believe that the actual quest for every audiophile in this hobby is to be able to listen to different flavours that sound top tier and yet have their uniqueness and identity which is very very rare to find. We can happily say that Spirit Torino Twin Pulse Beryllium IEMs is one such gem that sounds truly reference yet unique with its own soul. From the unboxing to the built quality and accessories the team at Spirit Torino has worked hard to present their first attempt at building a top-tier IEM and that also at a reasonable price of 850 US$. Although the bullet housing design of the IEMs is subjective, if you are in search of an IEM that sounds unique yet reference this as an easy recommendation from us at Aural Cafe. If they could have made it in a more conventional design IEM, it would be absolutely flawless.

Non-Affiliated Link: -
- https://www.spirittorino.com/en-us/collections/high-end/products/iem-twin-pulse-berillium