Reviews by Ichos

The FiiO FT5 is a full sized, open back planar magnetic headphone with a 90mm large-sized driver unit. This driver adopts a 6um ultra-thin diaphragm with a precisely crafted micron-plated aluminum silver alloy voice coil. The driver is produced using a nanoscale-level coating process for enhanced sound reproduction.

Technical specifications

Non Audio stuff

There is no plastic used in the FiiO FT5, the whole frame, the headband and the ear-cups are made from aluminum - magnesium alloy. The self-adjusting headband has an extra leatherette floating strap for better comfort.

The outer appearance of the FT5 is classic yet modern, it is more classy and luxurious looking than the FiiO FT3.

The FiiO FT5 is one of the best made and well constructed headphones, no matter the price.

The ear-pads of the FiiO FT5 have a larger inner diameter than that of the FiiO FT3 so they are much more roomy and comfortable. The weight of the FiiO FT5 is 456g and it gets evenly distributed thanks to the well designed headband. Additionally, the ear-cups have a 3-axis swiveling mechanism that allows them to freely rotate.

The overall feeling is that of a comfortable headphone that doesn't exercise much clamping force and is suitable for extended listening sessions. The only downside is that air circulation is not that great so the ears can become a little hot after a while.

The headphone comes with two types of ear-pads that are used to fine tune the sound. Suede and protein leather ear-pads. Pad swapping is easily done. The pleather pads are slightly more comfortable.

The FiiO FT5 comes with high quality, detachable cable with dual 3.5mm interface on the headphone side and interchangeable plugs. The package includes 3.5mm and 4.4mm plugs plus 6.35mm and 4-pin XLR adapters.

Except for the premium cable and the two different types of earpads, the FiiO FT5 is also equipped with a luxurious, leather storage case and a velvet carrying bag.



Audio stuff

With a 36Ω of impedance and a high sensitivity of 110dB/1Vrms@1kHz, the FiiO FT5 can be powered effortlessly by portable players and USB DACs but it also scales very well with desktop gear.

Taking the pleather pads as the reference point, the FiiO FT5 has a tuning with an extended low-end that is followed by a mildly subdued mid-range and present but non intrusive treble. Swapping to the suede pads will shift the tonal balance towards “V”-shape with a more prominent mid-bass while the rest of the frequency band remains pretty much unaffected.

The pleather pads offer a reference-style approach to the tuning of the low-end with very satisfying sub-bass extension and a bass that is just a little emphasized up to the lower mid-range. The bass is crystal clear and well defined with excellent transparency and layering. There is no hint of cup reverb or distortion, the bass is tight and controlled with fast recovery and natural decay. The texture is weighty and full bodied, almost visceral and the only thing that holds the performance a little back is the relative lack of physical impact and punchiness, at least when compared to the FT3 350Ω or more expensive planar headphones.

Despite some recession in the mid-range, the presentation is quite realistic with a mostly natural timbre, both when listening to vocal or instrumental music. This is not the headphone to use if you like prominent vocals because they do get pushed slightly back of the foreground. The texture is weighty and full bodied, the FT5 is a spacious and full sounding headphone while it is as resolving and refined as someone would expect from the category.

You can use the pleather pads to get extra transparency and definition, at the expense of body weight, or choose the suedes to add a touch of warmness and make the mid-range sound a bit fuller and more organic at the cost of clarity and definition.

The higher frequencies are bold, energetic and luminous sounding but without significant sharpness or harshness. The pleather pads will add greater transparency and extension to the treble, they will make it sound a touch crispier and more sparkling, maybe a tad bright, while the suedes will offer a smoother and more agreeable tuning with less sharpness.

Resolution is very satisfying for the category and so is the overall technical performance and the detail retrieval. The FiiO FT5 is not the most analytical and brilliant sounding headphone nor the most refined in the treble but it stands out for its natural timbre and the minimum amount of treble artificiality.

The sound of the FiiO FT5 is very cohesive, the notes appear with the same amount of thickness, all the way from the low-end to the treble, and they decay with the same speed.

The soundstage is exceptionally wide and spacious with excellent panning in the horizontal axis and surprisingly precise imaging that compares with more expensive headphones. Unfortunately the same can't be said of the depth which is lacking in layering, the soundstage is rather flat without much holography and grandness, while the listener feels as if sitting quite close to the performers.

The FiiO FT5 is a versatile and adaptable headphone that is suitable for listening to all kinds of music. You can use the pleather pads for more critical applications, when tonal accuracy, transparency and precision are desired or switch to the suede pads when you are in the mood for more fun and leisure moments or seek enhanced bass and
extra warmness.

Family business

The FT3 350Ω has deeper sub-bass extension and the most neutral tuning. Slightly bright and a bit clinical with a monitor-like character, is the most technical, transparent and crystal clear sounding of the bunch, with the most impactful bass but also drier and not as full bodied as the other two.

The FiiO FT3 32Ω has a smoother treble, a touch warmer mid-bass, authoritative bass and more present mids, a combination that makes it an excellent all-rounder headphone that is slightly lacking in resolution and refinement when compared to the FT5. The FT3 32Ω is a little more impactful and dynamic sounding in the bass but not that well defined and controlled as the FT5.

Both versions of the FT3 do not sound as wide and expanded as the FT5 but they compensate with deeper layering and a grander, more holographic soundstage.

Vs HIFIMAN Edition XS

The overall low-end response is very similar on both headphones but the Edition XS is tuned with less emphasis in the mid-bass and lower mid-range areas. The tuning of the XS is more neutral but with slightly recessed mids and a brighter treble. The Edition XS is a bit more transparent and clean sounding with better technicalities in the bass when it comes to definition and layering. It is also a tad faster and more controlled than the FT5 but not as impactful and dynamic while it is also drier and not as weighty or full bodied.

Vs HIFIMAN Sundara
The HIFIMAN Sundara has a more neutral, almost linear, bass tuning and considerably more present mids than the FT5 but is also brighter sounding. It is crispier and more energetic than the FT5 with better overall technicalities in the low-end but also drier, not as visceral and less impactful.

Conclusion
The FT5 is FiiO's first planar magnetic headphone and is a great one. Premium looking and exceptionally well made, it offers excellent sonic performance with very competitive technicalities at an affordable price, while it comes with one of the best accessory bundles in the market, no matter the price.

The FT5 is already more sophisticated and maturer sounding than its younger brothers. FiiO is progressing really fast, with great leaps ahead, in such a way to make us wonder what the near future holds for this innovative company.

The review sample was kindly provided free of charge in exchange for an honest review.

A More inclusive version of this review is available in my website.

The Sivga Nightingale is a planar magnetic earphone with a single 14.5mm, dual magnetic, driver. The dual magnetic field rectangular array structure features exceptional transmission sensitivity and impressive transient response. It leverages magnetic mechanics to thoughtfully pair two sets of high-performance rare earth iron boron magnets, resulting in a significant boost in efficiency compared to standard configurations.

Non Audio Stuff

The ear-shells are made from aluminum-magnesium alloy with a solid wooden faceplate that is hand polished to have a unique appearance as no plate is similar to another. The Nightingale is a well made earphone with a luxurious and unique appearance.

The ear-shells are quite compact and lightweight, their shape follows the natural contours of the ear and additionally the cable sockets are cleverly positioned in order not to interfere when wearing the earphones. The Nightingale is a super comfortable earphone that fits securely and stays stable without exercising any annoying pressure even after prolonged time of use. You wear it and then just forget about it, the only gripe is the average passive noise attenuation.

The well made cable uses silver plated copper wires in a four strand design. It is a 2-pin detachable cable with recessed connectors and a 4.4mm aluminum plug but the package doesn't include a 3.5mm adapter. The cable is lightweight and soft, yet durable, it doesn't get tangled and has minimum microphonic noise.

The package includes a hard carrying case with a side zipper and two sets of ear-tips in three sizes each that are stored inside a thin plastic case.



Audio Stuff

The rating of the Sivga Nightingale is 16Ω / 100dB so it is not that difficult to drive but the source must be able to provide plenty of current at such low impedance without clipping.

The Nightingale has a mildly warm, smooth and rather balanced tuning where the middle section stands out as the undisputable prima donna of the show.

Sub-bass extension is not that great for reproducing synthesized electronic tunes but enough for acoustic music where even the lowest notes are easily audible. The lower bass is slightly rolled-off until the mid-bass where things start to get even and linear. The mid-bass doesn't get emphasized, it is crystal clear, tonally accurate and without bleeding into the mid-range.

The low-end as a whole is fast, tight and controlled without audible distortion but not that crisp or firmly defined. There is a touch of echo and some lack in punch and dynamics, the attacks are rather soft, it is pretty obvious that the bass is intentionally tuned as the supporting actor to the glorious mid-range.

The mids sound present, crisp and well defined with excellent articulation and ample body. There is plenty of harmonic variety, the timbre is natural and realistic, voices and instruments sound alive, fresh and exciting with great emotional depth.

The mid-range of the Nightingale is really amazing, very engaging, lush and mildly warm with extra liquidity and without upper mid-range harshness.

The treble is also tuned in order to help the mid-range stand out so it is slightly truncated and not that extended as not to distract the listeners attention from the mids.

There is a certain lack of sparkle and excitement but not that much to make the Nightingale sound dark or missing in treble definition and clarity. This is a polite and smooth tuning that doesn't induce harshness and makes for a fatigue free listening experience.

The timbre is quite natural without any serious artificiality and devoid of metallic sharpness while texture is full bodied in accordance with the rest of the frequencies.

The Sivga Nightingale is a fairly open sounding earphone with sufficient width and adequate soundstage depth. Separation and imaging are more than satisfying for the category and the overall presentation is natural and proportional.

Conclusion

The Sivga Nightingale has a daring tuning that is not afraid to part from the current trend that favours “V” shaped and Harman based sound profiles. And this is a good thing in my book because not all people sympathize with these kinds of tunings and look for something different.

The Nightingale has a unique tonal balance with an amazing mid-range that is full of musicality and engagement. Vocal lovers are going to adore and appreciate the tuning of the Sivga Nightingale.

The review sample was kindly provided free of charge in exchange for an honest review.

The full review, including comparisons, is available in my website.

The Arya is one of the most famous HIFIMAN headphones and the first step towards the company's higher-end models. The Arya was first introduced back in 2018 and since then underwent two revisions, the V2 around 2020 and recently was equipped with the stealth magnets to become the Arya Stealth.

The Arya Organic uses the stealth magnets system but its diaphragm is thinner than the one found in the Arya Stealth.

Non Audio stuff

The Arya Organic is identical looking to the Stealth version except for the outside perimeter of the ear-cups that has a wood looking finish instead of plain black. A color pattern that is definitely more “organic” looking than the total black of the Stealth version.

The headphone is crafted using a combination of steel and high-quality plastic, striking a perfect balance between durability and lightweight design.

The suspension system, grills, and yokes are constructed from sturdy metal, while the ear cups are made from durable plastic. Both the metallic and plastic components surpass the Ananda in terms of quality. The metal is thinner and boasts a superior finish, contributing to an overall better construction.

During use, there are no annoying cracking noises to disrupt your audio experience. The height adjustment feature is effortless, and the suspended headband is made from synthetic leather with additional cushioning on the inner side for enhanced comfort. This part of the headband looks a little fragile and prone to tear and wear.

The Arya's build quality is exceptional, however there is still plenty of room for improvement in order to match competitive headphones in terms of craftsmanship and materials.

The Arya Stealth offers exceptional comfort with its spacious and adjustable ear cups, providing ample room for larger ears. The hybrid cushioned ear pads are not only soft to the touch but also allow for excellent breathability, ensuring a comfortable experience even after extended use.

Additionally, the headband effectively distributes the weight evenly across the head, eliminating any pressure points. The clamping force of the headphones is perfectly balanced, ensuring stability and a snug fit without causing any discomfort.

It's worth noting that the ear cups are quite large, and individuals with smaller heads may find the Arya to be too big, even at the lowest height setting.

Unfortunately no updates over the Arya Stealth regarding the quality of the included cable. It is a 1.5m long, entry level detachable cable with a dual 3.5mm interface and a 6.35mm plug, made from single crystalline copper with a cotton outer sheathing. At this price point a higher quality cable with a balanced plug and an adapter should definitely have been included.

There are no accessories included except a foam headphone stand. Strange enough considering that the much more inexpensive HIFIMAN Ananda Nano comes with a nice carrying case.



Audio stuff

Rated at 16Ω/94dB, the HIFIMAN Arya Organic is pretty easy to drive, even from portable sources as long as they can provide ample current at 16Ω loads without clipping.

Some portable USB DACs might run out of juice but the heavyweight champions, like the Cayin RU-7 and the iFi Go bar can do very well. The HIFIMAN Arya Organic is also DAP friendly, the FiiO M15S is an excellent match for them while they scale incredibly well with desktop gear like the HIFIMAN EF400 or the Goldenwave Serenade.

Have you ever wished for an Arya with more bass and a slightly warmer sound signature? If yes, you are lucky because it seems that HIFIMAN has been listening to user feedback and decided to make their dreams come true by making the Arya Organic.

The HIFIMAN Arya Organic is essentially the Arya Stealth with a more “organic” sound signature by adding a bit more bass and attenuating the presence region. Don't think about anything huge though, the tuning differences between the two headphones are really subtle but still enough to make the Arya Organic sound a bit warmer and more musical.

The Arya Organic has marginally better sub-bass extension than the Arya Stealth and just a touch more emphasized bass but the tuning is very linear and neutral without a single trace of mid-bass boosting or unwanted coloration. So the Arya Organic has a low-end that is more present and intense, however it still retains the same high quality characteristics and great tonal accuracy of the Stealth version.

The bass of the Arya Organic is fast, crystal clear, tight and controlled with excellent definition and layering while it sounds more dynamic and impactful than in the Arya Stealth. Furthermore it is less dry and lean with a weightier, fuller and more “organic” texture. A very successful tuning that makes the Arya Organic the perfect headphone for critical listening and at the same time considerably more enjoyable and fun during casual moments.

The mid-range is linear, neutral and essentially the same tuning with the Arya Stealth but comparatively, it has more fluidity and a sweeter, more musical tone. This is a very refined and transparent headphone with plenty of harmonic resolution, excellent definition of the finest micro details and a very realistic timbre. The upper mid-range has the typical HIFIMAN boost which favors higher pitched vocals and certain instrumental overtones. Nothing edgy though, the Organic version is slightly less rough, more refined and pleasant sounding than the Stealth and safer with lesser quality material.

The lower treble is smoother and more forgiving than the Stealth but still this is a bright headphone with an upper treble peak, exceptional luminosity and plenty of energy, however it is slightly less sharp and aggressive sounding than Stealth. The timbre is more realistic although not devoid of some artificiality in the highest notes. This is something that gets quite noticeable while listening to high pitched stringed and vented instruments or the upper top register of the harpsichord and the piano with a sound that is slightly dry, thin and metallic.

The overall timbre is improved over the Stealth, the notes feel weightier, the sound is more homogeneous and coherent, the overall feeling is that of a more natural sounding headphone that is more refined and resolving. Thus said, the Arya Stealth is a bit more transparent and technically competent with a crystalline, monitor-like character.

The Arya Stealth is famous for its soundstaging capabilities and one of the few headphones that can rival, or even better the Sennheiser HD800S. The Organic continues on the same path with a grand and holographic presentation, deep layering and excellent imaging with plenty of space around every individual performer. One notable difference between the Organic and the Stealth is that the presentation is now a bit less wide and more intimate as the listener is positioned a couple of rows closer to the stage but without compromising in focus and ambience information.

Conclusion

The Arya Organic is quite an achievement for HIFIMAN since they have managed to make an improved version of their most popular headphone which costs less than the launch price of its predecessor.

And I dare say that this is an improved version over the Stealth because it has a more balanced tuning with added bass, it is slightly warmer and musical, it resolves better, has extra refinement and presents the music in a more realistic and sophisticated manner.

In the end, this is one of the best value “high-end” headphones in the market, a cost effective way to taste great sound, especially if you favor transparency, definition and clarity with a slightly bright sound signature that doesn't forget about bass.

The review sample was kindly provided free of charge.

A More comprehensive review is available in my website.

The EM6L is the successor and an updated version of the much renowned SIMGOT EM5. It is a hybrid earphone which combines an 8mm, custom-designed, high-polymer diaphragm, dual-cavity dynamic driver to handle mid-to-low frequencies and two sets of balanced armature drivers to take charge of the mid-to-high and high frequencies. With meticulously set crossover points and precise tuning techniques the SIMGOT EM6L has been designed and tuned to adhere to the H-2019 Target Curve.

Non audio stuff

The ear-shells of the EM6L combine a black resin-compound main body with aluminum faceplate inserts that have a mirror-like finish that is elegant and beautiful but also a fingerprint magnet. The EM6L design is plain and minimalistic but with a luxurious appearance that is more premium looking than the price would suggest.

The low profile and lightweight earshells offer a stable and very comfortable fit that is ideal for extended listening sessions. Passive noise attenuation is also very satisfying.

The interchangeable cable is made from silver-plated copper wires and uses the 2-pin interface. The plugs are recessed so they attach more securely and minimize the risk of accidentally bending the pins. This is a well made cable that is soft, yet durable, and with minimal microphonic noise.

The package includes a compact carrying case and only one set of ear-tips in three sizes.



Audio stuff

The SIMGOT EM6L is pretty easy to drive (26Ω/119dB) and for this review I have mainly used the Shanling UA1 Plus and the iBasso DC03PRO.

The tuning of the SIMGOT EM6L is Harman based but with finer balance as it boasts ample bass extension but without subduing the mid-range that is followed by a smooth treble and non fatiguing treble.

The bass is deep and impactful with remarkable sub-bass extension. The tuning is not exactly neutral, there is a certain mid-bass emphasis that adds a cozy warmness to the sound and makes the EM6L suitable for listening to a great variety of bass heavy music. At the same time it manages to stay within acceptable tonal accuracy margins for reproducing acoustic bass instruments without too much unwanted coloration. The bass is weighty and full bodied and it doesn't bleed into the mid-range, it is clean and pretty well defined, with good layering for the category. It is quite fast in its recovery, tight and mostly controlled minus a touch of resonance that adds a little echo that shouldn't be there.

The mid-range is so engaging and musical sounding that you can't stop listening. Present, clean and well defined with great resolution for the category and a full bodied texture. The timbre is eminently natural and organic, full of colorful harmonies and great tonal realism. Voices and instruments are reproduced in a lifelike manner without any significant upper mid-range emphasis. The temperament is mildly warm and smooth but not too dark while the mid-range doesn't lack definition and transparency.

The smoothness extends right up to the treble which combines plenty of energy and airiness with a polite and easy going character. This is not the most extended or sparkling sounding earphone but it exhibits strong timbre realism and a lack of artificiality. The EM6L might not be the most detailed or analytical sounding earphone but it is not that sort of overall resolution.

The EM6L boasts very good timbre and texture consistency throughout the whole frequency range thanks to the excellent driver integration.

The soundstage impresses upon the first minutes of listening. It is unexpectedly holographic and grand, extending both to the horizontal and vertical axis. Surprisingly good layering for the category and a mostly accurate imagining but not with much air or blackness around the performers.

Conclusion

There is plenty to love in the SIMGOT EM6L, the balanced and easy going sound character, the strong and impactful bass, the lush mids, the smooth treble and the comfortable wearing experience. The SIMGOT EM6L is an affordable all-around earphone for everyday casual listening to all kinds of music that does most things right rather than wrong and it is truly pretty hard to dislike.

The SIMGOT EM6L was kindly provided free of charge in exchange for an honest review.

The Ananda Nano is the latest version of the popular HIFIMAN headphones, following the success of the Ananda in 2018. It retains the stealth magnets from the previous models, but now features a thinner diaphragm based on the renowned Susvara design. This new diaphragm offers improved sound quality with lower distortion, faster response, and enhanced dynamics and details.

For those unfamiliar with the HIFIMAN Stealth magnets, they have a unique shape that allows sound waves to pass through without causing any interference. This innovative design reduces wave diffraction turbulence, resulting in a more accurate and immersive audio experience.

With an impedance of 14Ω and a sensitivity of 94dB, the Ananda Nano is compatible with a wide range of portable audio sources. It is also the easiest to drive among all the Ananda models released so far. To provide a comparison, the Ananda Stealth is available in two versions: V2 with 26Ω/93dB and V3 with 16Ω/93dB.

Non Audio stuff

The new Ananda Nano looks almost the same as the Stealth version of the headphone, except for the ear-cups and connecting yoke which now have a sleek silver finish that matches the window-shaped grills. The ear-cups are still made of plastic, while the grills, holders, and outer part of the headband are made of metal.

The Ananda Nano has HIFIMAN's hybrid headband design, with a metallic upper frame and a leather strap that helps distribute the weight. The strap is black in color. In terms of weight, the Ananda Nano sits in between the lighter V3 (398g) and the heavier V2 (440g), weighing 419g. The detachable ear-cups are oval-shaped and asymmetrical, completely covering the ears without touching the inner mesh.

The Ananda Nano is lightweight and incredibly comfortable, thanks to its even weight distribution. However, it does have a slightly tight initial clamping force, and its large size may not provide the best fit for people with smaller heads, even at the minimum adjustment length.

The build quality of the Ananda Nano is typical of HIFIMAN headphones, with no significant changes from previous generations. It is a well-made headphone that appears to be durable, but the overall craftsmanship and materials used may not be on par with similarly priced headphones from other brands.



Power stuff

The HIFIMAN Ananda Nano is a breeze to power, just make sure you have a source with decent power output. Forget about the rumors of needing tons of power or excessive current, it's all urban legends. However, it does shine when paired with higher quality sources. Despite being a mid-range headphone, it's incredibly transparent and precise, capable of bringing out the best in high-end sources. Feel free to use your top tier ear, like the iBasso DX240, FiiO M17, EarMen Angel, Aune S9c Pro etc.

Audio stuff

The HIFIMAN Ananda Nano stands out for its exceptional transparency and ability to adapt to high-quality sources. It faithfully reproduces the audio without adding any personal touch, reflecting the true quality of the audio chain and recording. It has a revealing and unforgiving nature, requiring careful matching to meet your listening preferences.

In terms of frequency response, the Ananda Nano follows the typical HIFIMAN signature with balanced and neutral bass, a nearly linear mid-range, and slightly boosted treble.

The treble is sharp but it doesn't become overly bright unless your audio source is also bright. It's important not to mistake its energetic and sparkling nature for negative qualities like harshness or excessive brightness, as the Ananda Nano doesn't possess these traits. The headphone offers excellent treble extension, crystal-clear and highly detailed sound reproduction, surpassing expectations in resolution and refinement. It rivals more expensive headphones like the HIFIMAN Arya Stealth in terms of resolving power.

The overall sound is refined and articulate, capturing even the finest details within the recording and bringing the music to life. However, in the higher frequencies, there is a lean and dry texture, along with a hint of metallic timbre, particularly noticeable with acoustic instruments. It's not that the sound is out of tune or inaccurate, but at times, a touch of artificiality can be detected.

The mid-range of the HIFIMAN Ananda Nano is exceptional, offering transparency, clarity, and resolution. It provides an open and spacious sound with excellent definition and deep detail retrieval. Both voices and instruments are accurately reproduced with a realistic timbre and natural harmonics. The tuning is almost neutral and balanced, resulting in lifelike and tonally accurate sound. However, there is a slight emphasis on the upper-mids that may be bothersome for those with extra sensitivity in that area.

Despite its lean texture, the low-end of the Ananda Nano is punchy and impactful. It offers excellent dynamic contrast, although it may not sound as weighty or visceral. The sub-bass extension is great, and the bass is neutrally and linearly tuned without any mid-bass emphasis or coloring. The transition from the low-end to the mid-range is seamless, without any overlapping or bloating. The clarity remains phenomenal, and the bass is textured and well-defined. It is also agile, lightning-fast, and perfectly controlled even with demanding material. In summary, the HIFIMAN Ananda Nano delivers outstanding technical performance in the low-end.

The original Ananda was well-known for its expansive and open sound, and that reputation continues with the HIFIMAN Ananda Nano. These headphones have a wide soundstage that extends both horizontally and vertically, while still maintaining a strong center image focus. The imaging is precise, and the Nano excels at capturing subtle ambient details. The soundstage feels tall rather than deep, creating a grand yet intimate listening experience.

The HIFIMAN Ananda Nano is versatile and can be enjoyed with a wide range of music genres and personal preferences. While it may not be the best choice for EDM or classic rock songs with poor recordings, it shines with classical music, jazz, acoustic rock, and many other genres.

Vs Ananda Stealth

The HIFIMAN Ananda Stealth is similar to the Nano, but it has a slightly thicker diaphragm. It used to cost $999, but now you can buy it for as low as $399 from HIFIMAN's official store. The build quality, materials, and fit are the same as the Ananda Nano, except that the Stealth is completely black and doesn't come with a carrying case. The Nano is a little easier to drive, but nothing too extraordinary.

The sound of the Stealth and Nano versions of the Ananda is slightly different, but they both have a similar sonic character. The main distinction is that the Ananda Nano has a more powerful and dynamic bass, giving a fuller and weightier sound with stronger impact. The sound pressure levels are also more intense. In terms of frequency response, they sound more or less the same to me.

I think the Ananda Stealth is already a pretty fast and controlled headphone, but the Nano takes it up a notch. The Nano is more detailed and refined, with better transparency and fidelity. It also has a more crystalline and bright sound. On the other hand, the Stealth has a bit less emphasis on the upper-mids, giving it a warmer and more organic sound. The timbre realism is better and there's less artificiality in the treble. The Stealth also creates a more spacious and deep soundstage, while the Nano is more intimate and closer sounding, but with incredibly precise imaging.

In my opinion, the Ananda Stealth is still a great choice and hasn't been overshadowed by the technically superior Ananda Nano. Many people might prefer it not only for its slightly different sound signature, but also for its unbeatable price.

Conclusion

The HIFIMAN Ananda Nano is a fantastic option if you're looking for top-notch sound and improved technical features compared to previous Ananda models. And the best part? It comes at a slightly lower price, making it even more affordable. These headphones offer incredible value for their mid-range price range, delivering an audio performance that surpasses expectations.

The Ananda Nano was kindly provided free of charge in exchange for an honest review.

ISN NEO 5 Review

ISN Audio is an earphones brand exclusive to Penon Audio with many successful products like the ISN H30 and their flagship, the ISN EST50.

The ISN NEO 5 is a new hybrid earphone with 5 drivers per side. A 10mm dynamic driver for the low frequencies and 4 Knowles BA drivers for the mids and the highs.



Non Audio Stuff

The ISN NEO 5 ear-shells are made from medical grade resin in a semi-transparent purple color. They are anatomically shaped with a custom-like design following the natural curves or the ear.

The ear-shells are lightweight, durable and well made. The fit is tight and comfortable, you can wear them for hours without feeling annoyance and moreover they provide good passive noise attenuation.

Cable

The 1.2m long, 2-pin, detachable cable is made from single crystal copper silver-plated wires in a four strand design. It is a well made cable with high quality aluminum plugs that is durable, soft and free of microphonic noise. You can order the cable with either a 4.4mm, 2.5mm or 3.5mm plug, the review sample came with a 4.4mm balanced plug.



Accessories

The retail package includes a premium carrying case with a magnetic lid, three types of silicone ear-tips in three sizes each, a cleaning brush and a shirt clip.



Audio stuff

The impedance of the ISN NEO 5 is 26Ω and the sensitivity 110dB so we are talking about an earphone that is pretty easy to drive and at the same time quite immune to source noise.

With the FiiO M15S, low gain was more than enough while portable sources like the Cayin RU-7 or the iFi Go bar made them sing without much effort.

As per usual practice the ISN NEO 5 was left playing music for about 80 hours before listening evaluation.

You don't have to listen a lot in order to realize that the tuning of the ISN NEO 5 is emphasized towards bass. At the same time though, the mid-range is crystal clear and well defined, followed by a mildly smooth, but not that lacking in extension treble.

The low end gets the lion's share, it has a subwoofer-like extension and plenty of emphasis up to the lower mid-range. It isn't devoid of some mild bleeding but the overall impression is of a bass that it is not too overpowering over the rest of the frequencies thanks for the good driver coherency.

The bass is weighty, full bodied and visceral with great dynamics and physical impact. It is a mostly tight and well controlled bass but the recovery is not that fast while you can hear a mild echo.

The overall low-end balance is not that restrictive for listening to acoustic bass instruments however some of them, like the double bass and the cello sound rather colored and less accurate than they should be. Additionally there is a lack of definition and layering, especially during rapid bowing passages or when multiple instruments are playing together.

The mid-range is surprisingly crystal clear and transparent, with strong presence and not suppressed by the boosted low-end. The tuning is mostly balanced without any significant upper mid-range emphasis nor any notable recession. Voices and instruments sound smooth, well defined and articulated with plenty of harmonic variety and good timbre realism.

The treble is vibrant and energetic with ample extension, yet smooth, polite and mildly forgiving. Not the most analytical and sparkling earphone but still quite resolving and with the benefit that it never sounds fatiguing or bright. The treble has a rather weighty texture, it is not dry or lean, the timbre is good without any significant BA artificiality or metallic harshness.

The soundstage is wide and spacious with plenty of air around the performers who are accurately positioned in the horizontal plane. There is not much of a depth though the layering is nothing special and the presentation is quite intimate.



Compared to the ISN EST50

The ISN EST50 is the brand’s flagship earphone with a hybrid configuration consisting of 1 dynamic, 2 BA and 2 EST drivers per side. The physical appearance is the same as the NEO 5 and the ear-shells are identically shaped. The ISN EST 50 is slightly bulkier and a bit heavier than the NEO 5 which is marginally more comfortable.

Both earphones share a lot of similarities regarding their tuning. The bass is slightly less elevated in the ISN EST50 so it is a bit more correct and tonally accurate than the NEO 5. Technicalities are also better, the ISN EST50 is more tight and controlled, a little faster with better definition and less of reverberation.

The mid-range of the ISN NEO5 is more present and engaging with a fuller texture but the EST50 sounds more refined and resolving. The treble is smoother on the EST50 and maybe less energetic and extended but it is of higher quality and with greater timbre realism.

The soundstage of the ISN EST50 is wider, deeper and more holographic than in the NEO 5.

The ISN NEO 5 is actually a very good sounding earphone, especially if you prefer emphasized bass and present mids, but there is a good reason that the ISN EST50 is the flagship.

Conclusion

The ISN NEO 5 is a comfortable and well made earphone with an agreeable tuning that has plenty of bass and an easy going nature that makes it suitable for everyday listening of most kinds of music. It would not be my first choice for listening to classical music or jazz but it is really superb for electronic, rock and pop songs where it sounds very engaging and enjoyable with an inherent vibe.

The ISN NEO 5 was kindly provided free of charge in exchange for an honest review.

iFi NEO iDSD 2

The iFi NEO iDSD 2 is the upgraded version of the NEO iDSD, which received a lot of praise but had a few small problems. The NEO iDSD 2 comes with a bunch of new features and improvements compared to its predecessor.

This versatile device can be used in three different ways. Firstly, it can be connected to headphones as a Head-Fi DAC/Amp, providing an excellent audio experience. Secondly, it can function as a pure DAC when paired with integrated amplifiers. Lastly, it can serve as a DAC/Preamp for active speakers and power amplifiers, giving you even more flexibility in your audio setup.

More information

aptX lossless

The world's first DAC with the latest Bluetooth 5.4 chip is here! It supports the new aptX Lossless codec, which allows you to stream high-quality audio without any loss in sound. This DAC features Qualcomm's QCC518x Bluetooth audio chip, which is qualified for Bluetooth 5.4 and supports various Bluetooth formats like aptX Lossless, aptX Adaptive, aptX, LDAC, LHDC/HWA, AAC, and SBC.

However, it's important to note that currently, only a few phones support the new aptX Lossless codec. So, for most potential buyers, this feature may not be very useful.

But don't worry, the iFi NEO iDSD 2 makes up for it with its excellent Bluetooth reception. It supports LDAC and aptX HD codecs, providing a sound quality that is almost as good as a wired connection.

Non audio stuff

The iFi NEO iDSD 2 now includes a 3.5mm line input, allowing you to use it as a dedicated headphone amplifier with an external analog source such as a phono. Another exciting addition is the support for external clock via the 10MHz BNC input, ensuring even more precise clock signal accuracy. The LCD screen has been upgraded to a vibrant 2-inch color display that automatically adjusts its orientation to match the unit. Additionally, the iFi NEO iDSD 2 comes with a sleek new remote control made from aluminum.

The iFi NEO iDSD 2 has a sleek front panel that features an LCD display, a versatile volume control, and four buttons for various functions like input selection and gain settings. It also has a power button and two headphone outputs (4.4mm and 6.35mm) for your convenience.

On the back side, you'll find the XLR and RCA stereo analogue outputs, a 3.5mm line input, and digital inputs including coaxial, optical, and USB. There's also an external clock and DC inputs.

To power the iFi NEO iDSD 2, you can use the 9V iFi iPower2 power adapter that comes with it. However, it's worth noting that it can also handle input voltages of up to 15V.

Headphone amplifier

The original iFi NEO iDSD had a weak headphone amplifier that wasn't suitable for demanding loads. However, in the iFi NEO iDSD 2, they have made significant improvements by integrating the Diablo headphone circuit. As a result, the headphone output power of the NEO iDSD 2 is now 5 times more powerful than its predecessor. It can effortlessly drive a wide range of headphones, except for extremely difficult ones like the HIFIMAN Susvara.

I've personally tested the iFi NEO iDSD 2 with various headphones such as the Focal Clear Mg, HIFIMAN Ananda Nano, Sennheiser HD660S2, and iBasso SR3. It did an amazing job driving them, providing plenty of headroom and excellent control.

Additionally, the iFi NEO iDSD 2 comes with Auto iEMatch, which reduces hiss from high-sensitivity earphones without compromising dynamic range. It also offers four gain settings, allowing for better adaptability to different headphone loads. I even tested the background noise with the Soundz Avant, and I can confidently say that the device is completely silent and free from any noise.



Audio stuff

When I first checked out the original NEO iDSD, I was blown away by how transparent and neutral it sounded. It had a sleek and crisp texture, and the treble was unexpectedly vibrant for an iFi DAC.

The iFi NEO iDSD 2 takes a step back to its roots, bringing back the classic iFi sound signature that is warmer and more organic. However, it still maintains its fidelity, clarity, and extension across the frequency spectrum. While it may not be as technical or neutral as its predecessor, it offers a more analog and organic timbre with vibrant harmonies and overtones.

The NEO iDSD 2 presents a realistic and lifelike sound, with a full-bodied and visceral experience that maintains tonal accuracy and avoids any artificial digital sound. The treble is natural and luminous, lacking sharpness or excessive brightness, yet still energetic and honest. While it excels in detail retrieval, it doesn't have the same analytical or magnifying quality as the original.

The new amplifier section enhances the bass, giving it a powerful impact and dynamic punch. The bass is fast, controlled, and well-defined, with excellent layering.

The mid-range in the NEO iDSD 2 is simply amazing. It's not only fluid and musical, but also captivating, thrilling, and expressive. When you listen to voices and instruments, they come to life in a realistic way, with a refined and weighty texture that's full of detail. It's that signature iFi sound that we all adore, with its natural and human-like tone.

And that's not all, the soundstage in the NEO iDSD 2 is even more impressive than before. It's not just expansive, but also layered and holographic, giving you a truly immersive experience. While the previous model may have been slightly more precise in imaging, the new one takes it to another level by placing the performers in a spherical and vertical manner. It's like being right there with them.

Conclusion

The iFi NEO iDSD 2 is a game-changer compared to its predecessor. It boasts a better headphone amplifier stage and a bunch of new features. Not only does this DAC have impressive technical capabilities, but it also delivers a more refined and melodic sound.

For those on a budget who don't want to compromise on sound quality or features, the iFi NEO iDSD 2 is the perfect all-in-one solution. It's also a worthwhile upgrade for previous model owners, unless they prefer a more technical sound or have headphones with a darker tone.

There's really nothing negative to say about the iFi NEO iDSD 2. It easily stands out as one of the best and most affordable all-in-one DAC/amps in the sub $1K category.

The iFi NEO iDSD 2 was provided as a loan and now is returned back

A more comprehensive version of the review is available in my website.

Aune Audio S17 Pro

The Aune S17 Pro is a pure Class A headphone amplifier that is completely discrete and balanced. It utilizes twin JFET, a type of transistor known for its high input impedance and warm sound similar to a vacuum tube. This makes it perfect for a headphone amplifier. In the final output stage, the S17 Pro employs two pairs of output transistors per phase arranged in parallel. With a total of 16 output transistors, it can deliver a maximum power output of 7.5W per channel.

Full technical specifications

The Aune S17 Pro comes with a unique feature that lets you choose between two levels of quiescent current. You have the option to go for either 50mA or 100mA per transistor. Since each channel of the S17 Pro has two pairs of transistors in parallel, the actual quiescent current for each channel can go as high as 100mA or 200mA respectively.

The Aune S17 Pro comes with a cool feature that constantly monitors the temperature of the amplifier and shows it on the LCD display. This nifty feature is located in the lower right corner of the display. When the temperature reaches 69⁰C, the auto protection circuit kicks in and switches the bias current from 100mA to 50mA.

To ensure the Aune S17 Pro delivers top-notch performance and the best sound quality, it's crucial to maintain thermal stability in the output transistors. When you power on the amplifier, the temperature will match the environment, let's say around 22⁰C, and then gradually increase. It takes roughly 30 minutes for the temperature to stabilize at around 45⁰C for the 50mA bias and 55⁰C for the 100mA bias. Once it reaches this point, the temperature remains relatively steady and only rises when you start playing music.

For optimal performance, it's highly recommended to let the amplifier stabilize at the mentioned temperature values before diving into your music. So, power it on and give it at least 30 minutes to settle before enjoying your favorite tunes.



Non Audio stuff

The S17 Pro has Aune's signature ark design, which is both beautiful and minimalistic. However, one downside is that when you stack two similar devices, there are visible gaps on the sides.

The chassis is made entirely of CNC machined aluminum, providing effective EMI shielding. It has a sleek finish and comes in silver and black options. The multifunctional knob, also made of aluminum, feels smooth and sturdy without any wobbling. Overall, the Aune is a luxurious and well-crafted product that surpasses its price in terms of quality.

The front panel is simple and plain, with the LCD display in the center, headphone outputs on the left side, and the multifunction knob on the right. On the back, you'll find line inputs and outputs, available in both XLR and RCA plugs, as well as the AC mains input and power switch.

The Aune S17 Pro is a versatile device that serves as both a headphone amplifier and a preamplifier. It offers three different headphone outputs (4-pin XLR, 4.4mm, and 6.35mm) as well as line level inputs/outputs (XLR and RCA).

You have the option to control the device using either the multifunctional knob or the slim aluminum remote control that comes with it. The large LCD screen conveniently displays all the necessary information at once, although the colors may appear a bit washed out, especially the red one that indicates the 100mA bias operation.

Unfortunately, there is no option to dim or switch off the LCD screen.

The device provides several functions such as selecting between XLR or RCA line inputs, adjusting the gain to high or low, and selecting the bias current.

One thing to note is that the preamplifier output is always active and doesn't mute when you plug in your headphones. This means you need to be cautious not to accidentally damage your headphones if the volume control is set too high. This can be a bit inconvenient if you frequently switch between headphones or active monitors.

Audio stuff

The Aune S17 Pro is a prime example of an audio component that is finely tuned like a genuine instrument. It's not just about reproducing sounds, but about creating an immersive musical experience that is far from clinical and sterile. With this exceptional amplifier, the music effortlessly flows, captivating your senses and keeping you engaged. It's addictive in the best way possible, consuming your free time with soul-stirring and exhilarating music.

What sets the Aune S17 Pro apart is its stellar sound quality, combining technical excellence and transparency with a natural timbre that is unmatched. The timbre is the key to its audio performance, giving music a lifelike quality that is truly organic. Pair it with high-quality sources and headphones like the Meze Elite, and you'll experience music like never before. Yes, even the $4K Meze Elite sounds incredible with the $700 Aune S17 Pro, proving that this mid-priced amplifier can do justice to high-end equipment.

From the lowest bass to the highest treble, the sound produced by the Aune S17 Pro is rich, full, and harmonious. Its frequency response is linear, with a weighty and impactful bass that adds depth to your listening experience. The dynamic contrast is impressive, with excellent control and a well-defined, layered sound that offers clarity and resolution.

The mid-range of this solid state amplifier is simply amazing. It has a sweet and organic sound that is usually only achieved with vacuum tubes. It's warm, but not too mellow or dark. It's clear, defined, and offers a touch of magic. When it comes to instruments and voices, they sound incredibly lifelike and full, with a solid foundation and beautiful overtones. The mid-range is robust, spacious, and refined, making it perfect for all types of music, especially those with acoustic instruments and human voices.

The treble, on the other hand, is full-bodied and smooth. It's polite, yet still has great extension and clarity. It's energetic, but not overly nervous, and has a luminous quality without being too brilliant. You can listen to it for hours without feeling any harshness or fatigue. It's pure and realistic, with no artificiality or digital ringing, and it has a natural and effortless decay. The amplifier also excels at detail retrieval, bringing out all the hidden nuances in the recording without sounding too analytical or mechanical.

The Aune S17 Pro is known for its wide and spacious soundstage, offering excellent positioning accuracy and impressive depth layering. However, it doesn't necessarily outshine other competing amplifiers in these aspects. Nevertheless, its greatest strength lies in its ability to deliver a grand, immersive, and holographic sound experience. The amplifier produces large, well-defined images that seem to extend beyond the listener's head.

One of the remarkable features of the Aune S17 Pro is its compatibility with various sources and headphones. Whether you're using it with a smartphone, computer, or any other device, this amplifier pairs exceptionally well. While it can handle any genre of music with ease, it truly shines when it comes to classical music. The Aune S17 Pro brings out the intricate details and nuances of classical compositions, making it an absolute delight for classical music enthusiasts.

Conclusion

In simple terms, the Aune S17 Pro is a complete surprise. It's a headphone amplifier that combines all the technical skills of a modern solid state amplifier with a lot of musicality and realism. The sound it produces is incredible, making your headphones shine and allowing your music to flow like never before.

Don't be fooled by the price though, the Aune S17 Pro is one of the best solid state headphone amplifiers you can buy, and it can only be surpassed by competitors that cost two or three times more. In fact, it can easily be considered an end-game amplifier, no matter how expensive your sources and headphones are. Aune Audio has achieved something truly remarkable, setting a high standard for quality that will require a lot of hard work to surpass.

You can buy the Aune Audio S17 Pro from here.

A much more detailed version of this review, including comparisons, is available in my website.

HarmonicDyne Zeus Elite

The Zeus Elite has undergone enhancements and advancements compared to its predecessor, the Zeus. One notable improvement is the incorporation of a 50mm long-stroke layered diaphragm, consisting of two layers of inert composite film sheets held together by a layer of acoustic adhesive. This arrangement ensures stability for the membrane. Additionally, the diaphragm is complemented by an ultralight Japanese Daichi CCAW premium voice coil.
This sandwich configuration guarantees a more consistent distribution of vibrations throughout the membrane, minimizing distortions that may arise from fragmented reverberations. This linear functionality improves the sound's clarity and definition, while also enabling a wider dynamic range.

Non audio stuff

The headphone is crafted using a blend of wood, metal, and predominantly plastic components. The ear-cups are fashioned from dark Zebra wood and feature aluminum alloy protective grills adorned with an intricately engraved pattern, lending them a visually appealing appearance.

The remaining parts of the headphone are constructed from sturdy plastic, although they may not exude a high-end aesthetic. The inner frame of the headband is reinforced with a stainless steel sheet, enhancing its durability.

While the materials employed and the overall sensation of the Zeus Elite may not be considered truly "Elite," there is still potential for enhancement.

The headphone has a weight of 360g, making it lightweight and comfortable. It also has a medium clamping force, providing enough stability when worn on the head. The headband is equipped with a generous layer of soft padding, ensuring additional comfort. However, it is worth noting that the weight is not evenly distributed and tends to concentrate at the top of the head, potentially causing discomfort after extended use. The ear pads, which can be easily replaced by the user, are soft and well-cushioned with thick memory foam. Unfortunately, the inner space of the ear cups may not be sufficient for larger ears. Despite these minor issues, the HarmonicDyne Zeus Elite headphone overall offers a mostly comfortable and lightweight experience.

The HarmonicDyne Zeus Elite is equipped with two high-quality custom cables that are crafted using a blend of single crystal copper and silver-plated copper wires, resulting in a more harmonized audio experience. The cable connection system features a 3.5mm plug interface, allowing for effortless cable swaps.

Both cables are designed with balanced plugs, with one featuring a 4-pin XLR connector and the other a 4.4mm connector. However, it is worth noting that a 6.35mm adapter is not included, which means that using the headphones with single-ended sources would require purchasing an aftermarket cable or adapter.

The cables themselves are exceptionally well-crafted, boasting a robust and durable construction that minimizes any unwanted noise. However, it is important to consider that they are also quite weighty and may not be the most practical choice for portable usage.



Audio stuff

The HarmonicDyne Zeus Elite has an impedance of 32Ω at 1KHz and a sensitivity of 105dB/Vrms at 1KHz, making it effortless to drive without significant power demands.

The Zeus Elite offers a well-balanced tuning that showcases impressive bass presence, extending smoothly into the lower frequencies. The low-end is clear and distinct, with minimal emphasis on mid-bass and no bleeding into the mid-range. The tonality is remarkably natural, allowing most instruments to sound realistic without any excessive coloration.

This headphone delivers a highly impactful and dynamic sound, with minimal reverb within the ear cups. The bass is fast, tight, and controlled, although it may not be the most layered. Nevertheless, the bass line is well-resolved, avoiding the perception of sounding monotonous.

The mid-range bears resemblance to the Sennheiser HD650, although it falls slightly short in terms of resolution and refinement. However, the tuning is quite similar, featuring prominent mids and a subtle emphasis on upper-mids, which adds extra bite to certain voices and instruments. The Zeus Elite offers ample clarity and harmonic resolution, resulting in a natural and realistic overall timbre, complemented by excellent layering and definition.

The treble of the Zeus Elite is reminiscent of the Sennheiser HD650, but it lacks the same level of energy and sparkle. However, it still manages to maintain a smooth and polite sound signature, with enough light and clarity in the higher frequencies. These higher frequencies sound natural and forgiving. In comparison to the HD650, the Zeus Elite does lack some refinement, as the higher frequencies have a slight roughness to their texture and a comparative lack of resolution. Additionally, the fine-detail retrieval is not as deep.

The Zeus Elite by HarmonicDyne surpasses the Sennheiser HD650 in terms of its open sound and spaciousness. Its soundstage is remarkably wide and expansive, resembling that of a grand speaker. The headphone excels in depth layering, accurate positioning, and effectively conveying the ambient atmosphere, setting it apart from its competitors.

The HarmonicDyne Zeus Elite can be likened to the Sennheiser HD650 on steroids in terms of its exceptional low-end extension, dynamics, and soundstage. However, it may not possess the same level of resolution and refinement. This headphone excels across various music genres, ranging from pop and rock to grand symphonic and choral compositions. It provides an immersive listening experience, characterized by a delightful musicality and a pleasant touch of warmth and politeness.

Conclusion

The HarmonicDyne Zeus Elite is a solid headphone that can definitely compete with other popular options out there.

It has a similar vibe to the Sennheiser HD650, although it may not have the same level of refinement and detail. However, it makes up for it by offering impressive bass extension and a spacious soundstage.

The Zeus Elite boasts a well-balanced sound signature with a noticeable emphasis on bass. This combination creates an immersive listening experience that is complemented by its impressive technical capabilities. While the build quality could use some improvement, it is worth noting that the headphone is lightweight and comes with two high-quality cables and a convenient carrying briefcase. All of this is offered at a very competitive price point.

The HarmonicDyne Zeus Elite is available from Linsoul.

SMSL D6S

SMSL is a well-known audio brand from China that specializes in designing amplifiers, headphone amplifiers, and DACs. They are known for being fast and among the first in the industry to use the newest DAC chips in their products. One of their products, the SMSL D6S, is a standalone DAC that features the brand new ESS ES9039Q2M DAC chip. This chip is an updated version of the widely used ES9038Q2M found in many DACs worldwide.

The upgraded ES9039Q2M chip utilizes the HyperStream IV architecture, which improves performance compared to the previous HyperStream II. It boasts improved measurements, with a dynamic range (DNR) of 130dB and total harmonic distortion (THD) of -126dB.

In addition to the advanced DAC chip, the SMSL D6S incorporates four high-end OPA1612 op-amps in the balanced analog stage. It also features a third-generation XMOS XU-316 receiver, which supports PCM up to 32 bit/768 Hz, DSD 512, and full MQA decoding.

Furthermore, the circuit includes a separate audio clock and a built-in low-noise switching power supply with separate rails for the analog and digital stages. These features contribute to the overall performance and audio quality of the SMSL D6S DAC.



Non audio stuff

The SMSL D6S is a versatile audio device with three digital inputs (USB type-C, Coaxial, and optical) and two analogue outputs (XLR and RCA). It also supports wireless Bluetooth connectivity with high-resolution codecs.

In terms of design and build quality, the SMSL D6S features a modern and contemporary look, distinguishing itself from previous generation products. The device has a rectangular panel that houses the LCD display, giving it a unique appearance. The full aluminum chassis is well-made and finished, ensuring excellent build quality.

Operation of the SMSL D6S is user-friendly, with options to control the device using the multifunction knob or the included remote control. The analogue output signal is variable and can be adjusted from 0 to 99 for the full scale. This allows for compatibility with various power amplifiers and active monitors.

Additionally, users can select the desired digital input or Bluetooth reception, adjust the brightness of the LCD display, and choose the digital filter and DPLL level. During playback, the LCD screen only displays the input sampling rate, providing a clear and focused interface.

Audio stuff

The SMSL D6S was tested with various headphone amplifiers including the DROP + SMSL HO150X, Aune S17 Pro, and Violectric V222. The headphones used for testing were the Focal Clear Mg, iBasso SR3, and HIFIMAN Edition XS. All headphone cables used were made by Lavricables. Prior to the listening evaluation, the device was left playing music for approximately 80 hours.

The SMSL D6S is a highly neutral and transparent DAC with excellent fidelity. It converts digital signals to analog without any coloration or intervention. The device has a black and silent background, providing crystal clear sound with detailed retrieval and definition across the frequency range. While slightly analytical and lean in texture, it is not clinical or sterile sounding. The dynamic range is impressive, with impactful and contrasted bass, linear frequency response, and energetic treble. The sound is neutral, bright, and bold with rapid transients, but not harsh or fatiguing. The soundstage is wide and spacious with pinpoint imaging, although depth and holography may not be as pronounced. The SMSL D6S is ideal for studio production and can easily be integrated into various audio chains without altering the sound.

The Bluetooth connection provided by the SMSL D6S is not only fast, reliable, and stable, but it also maintains its performance within a working distance of 5-6 meters. The sound quality of this device is exceptional, although it does exhibit some common Bluetooth issues such as a slight lack of refinement and resolution, a slightly harsher and grainier treble, and a touch of artificiality.

When comparing the SMSL D6S to previous generation SMSL DACs that utilized the ES9038Q2M chip, like the SMSL DO100, it must be noted that there are no significant sonic differences. However, the D6S does offer a slight improvement in transparency, dynamic contrast, cleanliness, and technical proficiency. Apart from these minor enhancements, the sound signature remains largely unchanged. Therefore, if you already own the SMSL DO100 or another ES9038Q2M DAC by SMSL, upgrading to the D6S may not be worth it. However, if you are in the market for a new DAC, the D6S is a worthwhile purchase as it offers marginal improvements and incorporates the latest DAC chip.

Conclusion

The SMSL D6S offers exceptional transparency and linearity at an affordable price, along with an enhanced dynamic range compared to its predecessors. If you are in search of a DAC that delivers impeccable technical performance, a completely neutral sound signature, and a wide range of connectivity options, the SMSL D6S is the perfect choice.

The SMSL D6S is available from Shenzhen Audio

The Drop + SMSL HO150X is the successor of the venerable Drop THX AAA 789 achromatic headphone amplifier.

This time Drop have partnered with SMSL engineers who took the output power of the brand’s highly regarded HO200 amplifier and fit it into the smaller HO100 form factor. They also made sure to add several requested features, including balanced inputs and outputs, a dedicated preamp circuit for active speakers, and an intuitive three-position gain switch. The final product is the Drop + SMSL HO150X linear amplifier.

The Drop + SMSL HO150X headphone amplifier is a compact sized device yet it includes balanced XLR and RCA inputs, RCA preamplifier output and two headphone outputs, 4-pin XLR and 6.35mm single ended. The balanced output is for convenience only since the amplifier is not really balanced.

This is a well made device with full aluminium chassis and volume knob, smooth black finish and high quality switches expect for the plastic power button.

The amplifier output power is 6W/16Ω, 3W/32Ω, 550mW/300Ω, pretty impressive for the size and certainly enough to drive any pair of headphones. Noise floor is absolutely inaudible and the low gain setting allows for easy use with sensitive earphones.

The sound performance is exactly as advertised, a wire with gain. Linear, crystal clear and transparent, this is an achromatic amplifier that will not add or subtract anything.

Fast, dynamic and impactful but lean and dry on the low-end. Crystal clear and resolving mid-range without much harmonic variety but still not artificial or sterile. Sharp and airy treble with plenty of luminosity and a touch of brightness, it never sounds harsh or piercing. Open sounding and expanded with accurate imaging but not too deep or holographic soundstage.

This is the kind of amplifier that you can pair with all sources and headpnoes since it doesn't have a character of its own and shines with its absence.

If you need a powerful headphone amplifier with excellent measurements and masterclass transparency then look no further. The Drop + SMSL HO150X is the answer to your needs at a very affordable price.

The UA1 Plus is the third generation of Shanling’s entry level USB DAC dongle after the original UA1 and the UA1 Pro. Both the original and the Pro models came with a single ESS DAC chip, the ES9281P in the former and the ES9219C in the later. Instead, the new model is now equipped with dual CS43131 DAC chips and a separate CT7601 USB receiver that supports decoding up to 768kHz/32bit PCM and DSD256. The new UA1 Plus also features a detachable cable design and has one 3.5mm headphone output that can provide 80mW/32Ω of maximum power. The UA1 Plus is shielded and optimized for ultra low noise output and extremely clean background.



Appearance

The Shanling UA1 Plus is one of the most compact and lightweight USB DAC dongles, it weighs 9.5g only and measures 40×17.7×8.2mm, it is so small and thin that there is always the risk of losing it. This is why Shanling have implemented a tiny hole at the upper corner of the chassis where you can attach the supplied lanyard and have the UA1 Plus hanging from your bag. The UA1 Plus has a durable aluminum construction with a smooth finish, it is absolutely well made and is available in two colors, pure black and titanium gray. The new UA1 Plus is much better designed and looking than the previous generations. Next to the headphone output there is a tiny RGB light that will display the current playing sampling rate in various colors.

Accessories

The Shanling UA1 Plus comes equipped with a lanyard, a high quality USB type C to C cable and a USB C to A adapter. A Lightning cable is also available but is sold separately.

The Eddict player application

The Shanling UA1 Plus is compatible with the Eddict player application which is available for Android OS. You can use it to bypass Android internal volume control and fine tune the volume in 100 steps, select between the five available digital filters, set the gain to low or high and adjust channel balance. The best part is that the UA1 Plus has embedded an EPROM chip that permanently stores the user settings. So you can use an Android phone to configure the UA1 Plus and then it will remember the settings no matter what device it will be connected to.



Single multifunction button

The Shanling UA1 Plus comes equipped with a single tiny button that is located at the side of the chassis and can perform various tasks. Single press during playback will function as play/pause. You can press down the button while connecting the UA1 Plus to the host device to enable UAC 1.0 mode. There is also an extra feature that allows for volume adjustment but it needs a lot of practice in order to master it. Double clicking the button will enable the switch volume control mode. At first action a red color will light up indicating that you can now press the button to increase the volume on the phone. Double click again and the color will become cyan meaning that you can now press the button to decrease the volume. Wait for two seconds to end volume control mode. To be honest the button is so tiny and the actions must be performed so fast that I found the whole thing pretty unusable and rather useless but you may be more skilful than I am.

Power output and efficiency

Shanling informs us that it has implemented a specialized DAC circuit that takes advantage of all the latest advancements in USB DAC power management and made the UA1 Plus 60% more efficient in standby mode and 40% during playback.

I have performed my own measurements with a generic USB power measuring tool and got the following numbers: Shanling UA1 Plus standby consumption 0.03A (0.17W) – iBasso DC03PRO 0.06A (0.34W). Shanling UA1 Plus playing 24/96 file with the FiiO FA7 at moderate listening volume 0.05A (0.26W) – iBasso DC03PRO 0.07A (0.35W).

A few words first about the power output of the Shanling UA1 Plus which is one of the most powerful USB DAC dongles with a single ended output. With 80mW/32Ω on tap, it will drive most of your earphones plus some sensitive headphones, like the Sivga Luan while it is hiss free and dead silent without audible noise or any kind of clicking sounds.

Sound performance

Sound quality is really impressive without anything negative to remark. Regular readers will know that I am quite fond of the CS43131 DAC chip, especially with the NOS digital filter and the Shanling UA1 Plus features one of the best implementations so far. The overall sound signature is focused on timbre realism and musicality while keeping the excellent technicalities hidden at the background. This is a hell of a musical and engaging DAC that pairs well with various earphones, it has a linear frequency response with accurate tonality and great transparency. It is slightly warm and very organic and displays an excellent fidelity without further coloring the sound. It has the ability to reproduce the music by imbuing a natural timbre without never sounding artificial or treble forward but neither dark or overly saturated. This is a fast and impactful DAC with punchy bass, good resolution for the category, natural sounding mids and plenty of energy in the treble without overdoing it. Definition, layering and detailed retrieval are more than satisfying and nicely bonded together to add to the overall musical realism without making the DAC sound sterile or clinical. The UA1 Plus sounds quite weighty and not dry while it does a great job presenting a wide and spacious soundstage that enhances the imaging properties of the earphones used. This is an all-round DAC that matches well with all kinds of music and the only thing you have to do is to pick the right earphone for each. Choose the 7Hz Legato for your favorite bass tunes or switch to the LETSHUOER DZ4 for some classical music listening.

Compared to the iBasso DC03PRO ($69)

The iBasso DC03PRO is another compact sized USB DAC dongle that features dual CS43131 DAC chips combined in a single ended output. The main differences between these two USB DAC dongles are more physical and functional related rather than actual sound differences.

Both devices support DSD256 but the UA1 Plus maxes at 768kHz/32bit PCM instead of 384kHz. On the other hand the DC03PRO is just a bit more powerful with 98mW/32Ω instead of 80mW/32Ω but it also consumes a little more power and gets warmer during use. The iBasso DC03PRO has two dedicated buttons for adjusting the volume but you cannot play/pause and is also a bit larger and 1g heavier. The iBasso DC03PRO is compatible with the iBasso UAC application that allows roughly the same adjustments as the Shanling Eddict player app but the notable difference is that it doesn’t have an EPROM chip so user settings are not permanently stored in the memory. The iBasso DC03PRO retail package includes an additional Lighting cable.

Sonic differences are pretty minimal and can be summarized into the following sentence: The iBasso is just slightly more impactful and dynamic, a bit more transparent and technical but not as organic and natural sounding as the UA1 Plus. The audible differences are really so subtle to the point that I would firstly consider all other non sonic attributes for choosing the one over the other.

Verdict

Simply put, for just $49.99 the Shanling UA1 Plus is maybe the best USB DAC dongle with a single ended output. Not only for the flawless sonic performance but also the excellent power management, compact size, great build quality, app connectivity and EPROM memory. There is no way that you can go wrong with the Shanling UA1 Plus, no matter your listening preferences and favorite earphones.

The price of the Shanling UA1 Plus is $49.99 and the review unit was kindly provided free of charge.

This is a brief review of the Aune S9c Pro, all-in-one DAC and headphones amplifier. You can read the full review in my website.



Build quality and appearance

The Aune S9c Pro is quite compact and suitable for desktop use. The chassis is made from aluminum that helps to further isolate the circuit from electromagnetic interference. The unit is sturdy and very well made with a fine sand-blasted finish that is available in black and silver.

The S9c Pro adopts the Aune trademark arc-shape design which is classic, simplistic and beautiful looking. The only disadvantage is that when you stack two units together, like the S9c Pro and the S17 Pro headphone amplifier, there is a visible gap at both sides and the top device is not so stable.

Sound performance

Musical, engaging and captivating is the Aune S9c Pro and you don’t have to listen a lot in order to understand how much effort was put into fine-tuning the device. This is not the usual, mass produced Chinese DAC/amp with the latest chips and the same topology that is used again and again without much inspiration and thought just to measure well in the lab. The S9c Pro is an “old fashioned” audiophile design where the engineer cares about sound and timbre realism and it is pretty obvious that has spent hundreds of hours to commit his vision into actual music.

And don’t even think that the Aune S9c Pro is not technically skillful or lacking in what we call “technicalities”. Frequency response is absolutely linear, the sound is transparent and crystalline with excellent clarity and definition throughout the whole frequency range. The bass is tight and controlled, full bodied, weighty and visceral with ample dynamics and physical impact. The mid-range is spacious and open sounding with surplus of resolution and refinement as is also the treble which is extended, energetic and detailed but without the usual ESS shrillness, brightness and analytical character. The soundstage is spacious and extended with sharp imaging and a well organized and impressively holographic relief.

I have lately reviewed many audio devices with the ES9068AS DAC chip (or even the ES9038PRO) and I must admit that the Aune S9c Pro is one of the least digital sounding while it has the most natural and smooth treble among many of them. This is not a coincidence though because Aune have gone into the effort to write their own low-pass algorithms and design a discrete headphone amplifier, specifically for making the S9c Pro to sound natural and realistic. This is the kind of audio device where you start listening to music and forget about everything else, you don’t have to think why the sound is bright, unnatural or artificial, the S9c Pro is about pure music and nothing else.

The Aune S9c Pro is extremely colorful and harmonious, expressive, organic and musical, almost analog sounding like there is a tube stuffed inside or using some class A topology. The S9c Pro is versatile when it comes to headphone matching and the only thing you have to do is to choose the right one according to the music you are planning to enjoy. With the Meze Empyrean (angled pads) they made a match made in heaven and produced extra realistic and natural sounding instruments with stunning vocals. Classical music is the forte of this combination and the Aune S9c Pro is highly recommended as one of the least expensive audio devices that can offer a taste of the high-end sound.

Verdict

With an audio performance that far exceeds the asking price, the Aune S9c Pro represents an outstanding value because it is the most affordable DAC/amp in the market that can give you a taste of real “high-end” sound.

Aune Audio is a Chinese audio brand that deserves a great applause for not following the easy path and taking great effort to design and tune the S9c Pro in order to produce music full of sentiments and emotions backed by some strong technical performance.

This is a brief review of the ddHiFi M120B Lightning / USB-C Earphone Upgrade Cable with Microphone and DAC. You can read the full review in my website.

Sound performance

The ddHiFi M120B offers an instant sound quality upgrade over all generic 3.5mm phone outputs unless you own something with a dedicated audio circuit. The sound it produces is surprisingly crystal clear and noise free with great transparency for an entry level DAC. The M102B doesn’t add any coloration to the sound and it pairs well with all earphones.

The sound is balanced, musical and very enjoyable with good technicalities for the category. The bass is extended, weighty and quite dynamic with sufficient control and definition. The mid-range is spacious and open sounding with timbre realism and fine articulation. The treble, which is not rolled off, is not offensive but is not lacking in excitement while resolution and detail retrieval are satisfying for the category.

The power output is lower than what larger sized USB DAC dongles can produce but is enough for driving sensitive earphones while the M102B has the benefit of the very low power consumption which results in minimal impact on the phone’s battery duration.

What we should always remember is that the ddHiFi M102B is not supposed to compete and replace higher quality USB DAC dongles like the ddHiFi TC44C or the iBasso DC03 Pro .This is an entry level solution designed with portability and less bulk in mind and as such it successfully does the job with a performance that surpassed all my expectations.

Verdict

The ddHiFi M102B is a smartly designed product for upgrading the audio performance of your phone and allowing the use of earphones if it comes without a 3.5mm jack. Very well made, lightweight and minimalistic it offers great sound quality for the size and it also adds microphone and in-line controls to all your favorite earphones.

This is a brief review of the Jade Audio JW1 - open principle ear-buds. You can access the full review in my website.



Build quality and fit

The earbuds together with the ear-hooks are entirely made from hard plastic. Build quality is very good for the category and the JW1 is available in black and white.

The Jade Audio JW1 is very comfortable to wear but only if you have small ears. The main drawback of the JW1 design is that the size of the earbuds together with the ear-hooks is really small, the main body of the earbud has 3.5cm of length and there is no way to bend or adjust the length of the ear-hooks. This translates that the JW1 will actually fit only small ears making it unusable with larger ears because the length of the earbud is not enough for the driver to reach and be properly placed against the ear canal. Not only is it uncomfortable to wear but also negatively affects sound quality with complete loss of bass and sound level pressure. It seems that the Jade Audio JW1 was designed with the Asian market in mind because it is too small and there is no way to fit a normal sized ear of a Caucasian adult.

Sound performance

Given that the JW1 is well fitted as intended then and only then the sound quality is pretty good. The large dynamic driver makes sure that the low-end gets sufficiently present for an open-back earbud, of course mid-bass is actually more prominent but still you can listen to most kinds of music without the feeling that there is much lack of bass. Dynamics are pretty good but control, layering and definition are average. The JW1 has a very open and spacious character with well defined, naturally tuned and engaging mid-range. Clarity is very good and voices are well reproduced, making the JW1 not only suitable for music listening but also for voice calls, web meetings and listening to podcasts. The treble is a touch sharp, but not too bright, with plenty of energy and bite. The absence of the higher resolution codecs doesn’t help much with resolution and refinement or detail retrieval and definition. What we should remember though is that the Jade Audio JW1 is intended for casual and generic use and as such it should be considered as successfully designed and tuned.

Verdict

If you have small ears then the Jade Audio JW1 is a very comfortable pair of TWS earbuds with good sound quality and the benefit of letting you be aware of your surroundings. It is also waterproof , has good battery duration and is dirt cheap, an excellent choice for everyone looking for a pair of open back TWS earbuds for everyday use.

This is a review of the Hidizs MS3 which retails for $119 and you can buy it from Hidizs online shop.



The Hidizs MS3 is a hybrid in-ear monitor with two BA and a single dynamic driver. It also features the replaceable pneumatic sound tuning filter design that allows the user to experience three slightly different sound profiles by just changing the nozzle filters.

Build quality and fit

The Hidizs MS3 design resembles that of the Hidizs MS5. It is a beautiful, stylish and extremely well made earphone. The ear-shells are anatomically shaped and help to achieve a comfortable and stable fit that doesn't cause fatigue even after prolonged time of use. Passive noise attenuation is also very good.

Technical performance

With 18Ω impedance and 112dB of sensitivity, the Hidizs MS3 is pretty easy to drive and also immune to source noise. The use of a high quality USB DAC dongle like the Hidizs XO or S9 pro is highly recommended because the MS3 can follow source upgrades up to a certain level.

Sound performance

The Hidizs MS3 is not just a cheaper version of the MS5 with the same kind of tuning and lesser technicalities but a totally different sounding earphone with its own unique personality. The MS3 is more balanced and naturally tuned when compared to the MS5 which has a low-end prominence and a darker sound profile. Actually the Hidizs MS3 is one of the most natural and balanced sounding earphones of the category while it has a great technical foundation that makes it suitable for both casual and critical listening.

With the balanced filter attached, the low-end has plenty of presence and extension to satisfy with bass intense music without becoming dominant while it can reproduce all the low pitched instruments of the symphony orchestra with accurate tonality and without further coloration of their timbre. The mid-bass that follows a natural tuning curve, is well defined and crystal clear without bleeding into the mids. The technicalities are impressive for the category, the bass is resolving, tight and controlled with great clarity and excellent layering. The dynamic driver is very agile with fast recovery time so it can pass from silence to climax instantaneously without producing undesirable echoes or loss of control. The MS3 is very dynamic but not as impactful and visceral as the MS5, it is slightly lacking in weight and the texture is a touch leaner but thankfully not dry or thin.

The mid-range is rather balanced with a touch of upper-mids emphasis but not that pronounced to add sibilance or cause some kind of listener fatigue. It does give some extra presence and clarity but without making the instruments sound too thin or out of tune. The overall timbre is natural, the MS3 is musical, engaging and organic with plenty of colorful harmonies to display. The mids have a striking realism that punches well above the category and they are surprisingly resolving and finely articulated. Note weight is also good, the texture retains the same kind of intensity together with the low-end without the usual loss of body that a lot of hybrid earphones exhibit when the frequency transitions from the dynamic to the BA drivers.

The treble is energetic and exciting, luminous and brilliant but without sounding bright, harsh or aggressive. The MS3 is again more transparent and resolving that someone would expect from the category with great clarity and detail retrieval. The transition from the mids to the treble is even, there is no loss of texture intensity or any weird tonal shifts. The timbre is kept quite natural in accordance with the other parts of the frequency range while artificiality is kept quite low even at higher listening levels.

The soundstage is a real treat, wide and spacious with surprisingly good positioning accuracy and imaging. There is plenty of space around the performers and the overall presentation is grand with lots of ambient information.

You can use the interchangeable filters to fine tune the sound. The bass fitter enhances the low-end up to the mid-range but it also subdues a part of the upper mid-range, drastically changing the stock tuning of the Hidizs MS3 to the point that we can talk about a totally different sounding earphone. Now you have an MS3 with a considerably more prominent low-end which also sounds darker, warmer and less present in the upper-mid range. The overall clarity and transparency are reduced a little and the MS3 becomes smoother and more forgiving with plenty of bass.

The silver filter has a more minimal impact on the frequency response of the MS3, the only thing it does is to just add a bit of extra brilliance and bite to the upper mids, giving a touch of a brighter and sharper character to the earphone.

Conclusion

The Hidizs MS3 represents one of the best values in the market right now and an excellent choice for everyone looking for a balanced tuned IEM that can be further customized with the tuning filters.

(The review sample was kindly provided free of charge in exchange for an honest review)

Visit my website in my signature for the full review.

This is a review of the Penon Tail USB DAC dongle that retails for $74.90 for the version without a cable.

The Penon Tail is a USB DAC dongle with dual CS43131 DAC chips and two headphone outputs that supports PCM up to 384KHz/32bit and DSD256.

To read the full technical documentation please follow this link.



Accessories

The Tail comes with a small carrying pouch made from real leather and a high quality detachable cable which is slightly longer than usual. Upon placing your order you can select between a USB type C to C or type C to Lighting cables or buy both or even order the Tail without a cable to use your own and save some money.

Build quality

The Penon Tail has a rectangular shape and the aluminum chassis that measures 53x20x10mm and weights 20g, is lightweight and compact suitable for everyday carry. It has a nice orange color except for the main surface which is painted white with blue printed letters. It is beautiful looking but I would have liked it more if it had a full orange chassis without the white surface.

Build quality and finish are excellent with only two remarks. The gain switch is a little stiff and the white surface looks prone to scratching and wear over time.

Technical performance

The Penon Tail has two headphone outputs, one 3.5mm single ended and one 4.4mm balanced. The maximum power delivery is 1.2V, 45mW/32Ω or 2.2V, 8.07mW/600Ω from the 3.5mm and 2.2V, 151.25mW/32Ω or 4.2V, 29.4mW/600Ω from the 4.4mm jack. These are the typical numbers for dual CS43131 DAC chips that run in a balanced configuration and use their own embedded headphone amplifiers. Plenty of power to run your earphones, like the ISN Audio EST50 and a lot of efficient headphones. The Penon Tail is totally silent without producing internal noise and it doesn’t get affected by phone EMI. The Tail is also power efficient and it doesn’t produce heat. As per usual practice the Penon Tail was left playing music for about 50 hours before listening evaluation.



Audio performance

The Penon Tail is surprisingly crystal clear and transparent with excellent linearity while not lacking in musicality. The sound signature is close to the typical CS house sound which is pretty engaging and musical while pushing the technicalities of the chip configuration to the maximum possible amount. In this regard the the Penon Tail has more common sound characteristics with the iBasso DC04PRO rather than the warmer sounding Truthear SHIO. People who are fond of the CS43131 NOS filter are going to be disappointed because there is no option to select it.

The sound quality of the Penon Tail is really great with a tight and controlled bass which is punchy, impactful and dynamic. The mid-range sounds crystal clear and resolving while the treble is airy and energetic without sounding bright. Layering and overall definition are more than satisfying as is detail retrieval and micro-dynamics.

The timbre is natural and realistic with just a bit of artificiality in the treble while the sound is full bodied and by no means dry or sterile. The neutrality of the Penon Tail helps it to match well with all kinds of earphones, even brighter ones, and feels at home with all kinds of music. The Penon Vortex made an excellent match for listening to classical music while I switched to the Hidizs MP145 to enjoy some classic rock songs.

The soundstage has excellent width and the presentation is airy and spacious with good imaging albeit lacking in depth and holography.

Vs the competition

I am not going into detailed comparisons because there are so many USB DAC dongles with the same chip configuration that sound more or less the same with some minor and subtle differences. As an example the Truthear Shio is just a bit warmer and less transparent. Additionally most of them have similar features and price tags. So whether you are going to prefer one over another it has to do more with brand preferences and design rather than anything else.

Conclusion

The Penon Tail has great sound quality, it includes useful features like hardware buttons and the price is right so it has nothing to fear from the competition although it doesn’t break new ground.

(The review sample was kindly provided free of charge in exchange for an honest review.)

This is a brief summary of my Soundz Avant review. Click the link to read the full review.





Executive summary

Soundz is an in-ear monitors manufacturer based in Greece where all earphones are handmade in their own private facilities. Soundz is well known both in the domestic and international pro-markets where some of the best singers and musicians are using their in-ear monitors.

The company is now expanding their line to reach deeper into the audiophile community. Two such products are the brand new, 8-driver Flame and their flagship, the 10-driver Avant.

All earphones can be made with both a universal and custom fit.

The Avant is Soundz’s flagship in-ear monitor that features 10 balanced armature drivers per side together with an advanced 4-way crossover.

4BA drivers for the lows and mid-bass, 2 BA drivers for the upper mids and 4 BA drivers to handle the high and ultra high frequencies. All drivers are made by Sonion.

One unique feature of the custom edition is the Flex Fit Pro™ technology that employs a revolutionary flexible resin material in each custom in-ear monitor stem. This unique resin is fully adjustable to ear canal temperature within a few minutes of use.

The Avant comes equipped with the newly-developed Immersive Mode, a feature that alters the internal impedance of the circuit and acts as an analog bass boost. The function is engaged by a micro-switch at the faceplate.

The Avant is lightweight, well made and extremely comfortable. The appearance of the Avant is fully customizable through Soundz website where you can choose colors, engrave your favorite logo etc.

The high quality cable that comes with the Avant is the Ethos MKV premium upgrade cable from the famous manufacturer Null Audio.

The Avant is very easy to drive but is also very sensitive to source noise and it scales incredibly well so it should be only matched with high quality sources.

The sound signature of the Avant is neutral - balanced with reference bass, engaging and highly resolving mids and the most refined treble which is just slightly sharp. But you can the treble smoother and the bass to sound fuller by just using the immersive switch. Technicalities, transparency, fidelity and clarity are class leading and among the best in the market.

The Avant might be crystal clear, resolving and detailed but is not analytical, clinical or boring. It manages to combine state-of-the-art technicalities and transparency with a musical and engaging nature. Of course the high revealing nature means that you should be careful with source matching and recording quality.

The soundstage is wide, expanded and spacious with excellent imaging and pinpoint positioning. The soundstage is immersive and holographic with plenty of ambience.

The Avant is an earphone with flagship sound quality and technicalities that has nothing to fear from the competition. It is also very lightweight, well made, extremely comfortable and so right priced that it should be considered as a TOTL bargain.
Give it a try and, trust me, you will not be disappointed.

This is a brief version of my LETSHUOER Cadenza review.



Executive summary

The LETSHUOER Cadenza is hybrid IEM 12 drivers, a six-way electronic crossover and five acoustic bores. It uses a 10mm LSS Kevlar dome driver for the bass, Sonion composite mid-woofer drivers, Sonion composite mid-tweeter drivers, Knowles composite tweeter drivers and Sonion composite super tweeter drivers. The actual number of the drivers used per each frequency range is not disclosed to the public.

The Cadenza is lightweight and compact sized for an earphone that houses 12 drivers. It is very comfortable as it fits like a glove and after a while you forget that you are wearing it.

The Cadenza is luxuriously designed like jewel, it is minimalistic, gorgeous and beautiful looking. Build quality is absolutely stellar, the surface is meticulously finished with a technique that doesn’t attract fingerprints or stains while the material is hard enough as not to be scratched.

The modular stock cable utilizes 204 strands of 6N mono-crystalline copper and silver in a hybrid weave construction. The cable comes with three, high quality, interchangeable plugs (4.4mm, 2.5mm and 3.5mm). The cable has excellent quality and is very durable but it is quite stiff and heavy for portable use.

The accessories include three types of silicone ear-tips in three sizes each (vocal, balanced, bass), a luxurious carrying case made with real leather, a cleaning cloth and a copper plate which has the LETSHUOER mascot engraved at it. You can also convert the wooden package into a luxurious storage box with four equally divided spaces where you can store your gear.

The Cadenza is very easy to drive but also mildly sensitive to source noise. It scales great and will reveal its potential only with a high quality source.

The Cadenza has a very balanced and musical tuning that pairs well with all sources and types of music. The Cadenza is not a flagship made to impress with extreme technicalities and analytical sound but rather an earphone that communicates the music in the most natural manner. The overall sound performance and presentation reminds more of a high quality full sized headphone rather than an IEM and this is a great achievement on its own. It is rather difficult to summarize the sound performance in a few words so readers are encouraged to visit my website and read the full LETSHUOER Cadenza review.

You can read the full 7Hz Legato review by clicking the link.



Executive summary

The 7Hz Legato is a dual-driver in-ear monitor featuring two high-performance dynamic drivers on each side. The pair houses a 12mm and another 6mm dynamic driver where the 12mm one acts as a woofer and the 6mm driver is kept responsible for the midrange and treble response. The 7Hz Legato includes a unique crossover design along with 8 Japan-made audio-grade Tantalum capacitors to provide high precision and stable performance. The unique crossover is specially-developed in accordance with the characteristics of the dynamic drivers.

The 7Hz legato is lightweight and very comfortable albeit the ear-shells being a little bulky and protruding outside the ear. Sound isolation is not bad but not great either. The appearance is modern semi-industrial and the build quality is excellent.

The 2-pin detachable cable is well made, it is soft, it doesn’t get tangled and it doesn't induce microphonic noise.

The package includes plenty of ear-tips, spare wax filters for the nozzle and a very well made and luxurious carrying case which is too big for portable use.

The 7Hz Legato has plenty of emphasized bass and great sub-bass extension, reaching bass-head levels, but at the same time it manages to sound present and clear in the higher frequencies. The tuning is made to offer a bass-heavy listening experience without carrying too much about correct tonality and balance. The low end is too colored and mostly out of tune but it will greatly satisfy with all kinds of bass music.

The mid-range is darkish and warm with enough presence and acceptable clarity but not that well defined. The treble is smooth, a little subdued and forgiving. Not the last word in clarity and definition but suitable for easy listening and fatigue free sessions. The treble doesn’t sound artificial or too metallic and instrumental timbre is quite natural. The soundstage is spacious and wide enough with good positioning traces and without exhibiting congestion.

The 7Hz legato is going to satisfy everyone looking for plenty of shaking bass without overpowering too much the rest of the frequencies.