Softears - Volume S

Next expensive set of IEMs I have are the Truthear Hexa, which might be an upgrade for some, but also a downgrade for others since the Hexa have less bass. The Wan'er 2 are amazing, but I own both a set of Moondrop x Crinacle Dusks as well as a set of Softears Volume S, which both are much better than the Wan'er, or at least they are to my ears. It just depends on your preference. But generally speaking, sets that are significantly more expensive will most likely be better than the Wan'ers

I haven't heard the Tea Pro, but I have herd the Volume S. I don't recommend them and I actually returned them. Way to shouty for me and they didn't actually sound as warm as others described. I'm still in love with my Dusk though

**Pros:** \-Intense, dynamic but non fatiguing sound \-Bass quality \-Versatile warm tuning \-Good soundstage **Cons:** \-Not the same magical vocals than on the RSV OG \-Opening experience could be better \-A little bit dark sometimes \-Not the most technical \-Treble lacks air and sparkle**Softears RSV Mark II** *-Price :* Around 600 euros *-Driver Setup :* 5 Balanced Armature drivers, four-Way Crossover *The Softears RSV MKII was purchased with my own money, so everything I say will be my opinion and only my opinion.* >!About myself : I am a French student, passionate about sound, and more precisely, "nomadic sound", this ability to access music in high quality even when on-the-go, because I also travel a lot. As a result, I know more about dongles, IEMs and DAPs, even if I had some headphones and still own a desktop DAC/amp. I don't claim to hear better, nor to know everything, but I just want to share this passion.!< >!**IEMs I had or have** : Simgot EW200/300, Moondrop Blessing 3, Simgot EA1000, Xenns Top, Xenns Tea Pro, Ziigaat Odyssey, Sennheiser IE600, ISN NEO 5, Penon Fan 2, Ikko OH10, Letshuoer S12 Pro, Moondrop Crinacle Dusk, Softears RSV, Dunu SA6, Dunu SA6 MKII, Truthear Zero:2, Softears Volume S, Kiwi Ears Aether, Yanyin Canon Pro, Xenns Top Pro, Crinear Daybreak, Theaudio Origin, Punch Audio Martilo, 7Th Acoustics Supernova.!< *Devices used for this test :* Fiio K11, Samsung A16, CX31993 dongle, Ibasso DX180 *Photos by myself with a Fujifilm Camera* **Introduction** Founded in 2017, **Softears** is a Chengdu-based company focused on the research and development of loudspeakers and measurement and calibration tools. The fruits of their research take the form of in-ear headphones with a sleek design and high-quality construction. They are famous in the community for their great tuning abilities and the lively **vocals** some of their sets produce, the **og RSV** was one of their most famous set for this exact reason, for some, it had THE best vocals reproduction in the IEMs scene, will the RSV MKII be able to keep this reputation ? Spoiler alert, it doesn’t even try to. **Personnel rating summary**​ |Attribute| Rating /5|Quick note| |:-|:-|:-| |Build quality|★★★★★|Feels sturdy, looks beautiful, and isn’t a fingertips magnet, nothing bad to say.| |Comfort|★★★★☆|Very comfortable, can wear them for hours, but sticks out of my ears a little bit too much to be perfect for me.| |Accessories|★★★☆☆|It’s ok, you have what you need, but nothing very original, and for this price you could expect better, it doesn’t feel like 600 euros.| |Tonality|★★★★☆|Very natural, a little warm, but not perfect.| |Bass|★★★★★|Very good, impressive for BAs drivers, very rumbly, hit deep and have a great definition.| |Midrange|★★★★☆|Warm and lush, but a little bit too recessed for my liking because of the prominent bass(nit-pick). not as good as the OG RSV.| |Treble|★★★★☆|Good, but not the most detailed and lack some air in the upper region.| |Soundstage|★★★★★|Impressive, very wide for an IEM, holographic, deep and high.| |Technicalities|★★★☆☆|Good, but not class leading in this price category, I would have wanted it to be more technical.| |Value for Money|★★★☆☆|It is a very good overall, but I feel like you can get better at this price.| **Unboxing experience** The unboxing experience of the RSV MKII is original, the form and the presentation of the box is not common, you open it like a christmas gift and you take everything out of it from the top, but the surprises stop here. Inside, nothing really impressive, even more for a 600 euros price tag, I feel like the packaging is a little bit poor. When you open the box you find the IEMs, with the 4.4mm cable already plugged in them, then when taking them out you find some little plastic pouches in an accessories cardboard envelope. Those pouches contain a cleaning tool, two types of tips (classic silicone and UC tips) and a 4.4 to 3.5mm jack adapter. Finally, under all of that, you have the empty carrying case, a round one. The whole package isn’t bad by any means, but it is not great either for this price. The box looks sleek and I like that, but the accessories are limited and don’t really feel premium. For example I preferred the boxes in which the tips were sold for the Volume S, it felt like another product inside the product it gave you this sense of value. Overall I even preferred the packaging of the Volume S, the carrying case also felt better to me, but was also bigger. At the end, what really counts is the sound, the IEMs themselves, so I don’t judge the product on its opening experience, but I wasn’t quite satisfied with the one of the MKII, It made me feel like a step down compared to the Volume S package, but I can understand that Softears wanted to try something different. **Accessories** While Softears was not really generous with the amount of accessories, they provided quality ones. *-Cable* : Very good 4.4mm braided cable, feels very solid, but is flexible enough to be comfortable, not too thick nor too thin, it is a very good cable. *-Adapter* : This cable doesn’t come with interchangeable termination, so for letting you use a classic 3.5mm one, Softears provided a 4.4 to 3.5mm adapter with the RSV MKII. It feels robust, and does the job perfectly, without any “pop” noise or raising the noise floor, it is just an adapter, and a good one. *-Tips* : The black silicone tips included with the RSV MKII are very classic, the same that you can find on a lot of other brands's own packaging, however, the transparent tips are great, they feel very comfortable and are sealing your ear canals better than the original tips. I liked them the most, like on the Volume S. *-Carrying case* : The advantage of this round carrying case is its size, it is not pocketable, but very easy to put in a little bag, it is nicely built, rather soft, and has a leather-like texture. I prefer the rectangle case from Softears, but this one is also very good, and feels premium enough to transport such an expensive product. **Build and comfort** *-Build* : This is, in my opinion, a very strong point for the RSV MKII, like a lot of Softears IEMs. The build of the RSV MKII is very very good, it feels sturdy, like if it was made in one unique piece, the materials used are very qualitative, and it looks absolutely stunning. I am digging for this type of class and sleek looking IEMs, without being lifeless. Those **are** classy, without looking too fancy, but still have a very original and complex faceplate design. They are probably the most beautiful IEMs I have had. They look even better in person than on the Softears's website, and the cable completes them perfectly... The build and design are one of the best points of this IEMs for me. *-Comfort* : Comfort is a very personal subject, even if some IEMs are famous for being uncomfortable for most people (hello Thieaudio Origin). I have medium-sized ears, and small ear canals. The Softears RSV MKII are comfortable, I can wear them for hours without any problem, they sit well in my ears, without going too deep. My only complaint would be that they are sticking out a little bit too much from my ears, but it doesn’t affect the comfort at all and it is really nit-pick. **Sound quality** *Overall* : The sound signature of the RSV MKII is a total departure from the OG RSV. The RSV was very special to me because of its beautiful vocals reproduction and mid range overall, but I found it lacking in quality, whereas the RSV MKII is (very) bassy but is not as pleasant when it comes to vocals. The MKII is aiming for a more “all rounder” sound, and for that it becomes more dynamic, with an emphasis on its treble and bass. It makes this iteration more versatile, but also less special than the RSV was. The RSV MKII still has a lovely and very cohesive sound, as Softears know how to do. But for me, the RSV MKII will just be a “good” set, and not a specialist. While I can understand this new trend of “good at everything, great at nothing” to make more people interested in your product for its versatility, I find it sad to lose all those IEMs with a very “special sauce” and reputation. *Bass* : The bass of the RSV MKII is surprisingly its shining area, where it was the vocals for the OG, on which the bass felt less powerful and deep. Here, despite the all BAs setup, you get very meaty bass, with a deep impact, a very good texture, and a pleasant rumble to it. The sub bass feel natural and are well extended. The sound signature is warmer because of the bass taking over a part of the mid range, but in a satisfying way. The bass is very prominent and could be overwhelming for some listeners. For me, they rarely became too much, unless on some very special music. Overall the bass of the MKII are very good, they are prominent but are not making the sound muddy and they stay controlled, very fast, while hitting deep. The MKII has better bass than a lot of IEM with dynamic driver bass. *Midrange* : This is where this set becomes more controversial for me. Not that the midrange of the MKII is bad, far from it, but coming from one of the best midranges I ever heard on an IEM, I expected the inheritor to do better, however instead Softears went for something completely different, losing the very thing that made the RSV so unique. The bass is transitioning in the midrange later than on the RSV, making the voices warmer, and while it can really work great with some male singers, it makes most of the female voices less natural and emotional, like Agnes Obel for example. The midrange is good, even very good on the MKII, but it’s less forward, because of the now more "V-shape" sound signature, and feels less textured for me. You lose this impression of “in your face” very intense and emotional vocals, which I loved on the RSV. The bass and Treble are now taking a lot more space, and because of that the midrange becomes just an element in the whole mix, not something that stands out a lot. Of course, it allows this set to be more versatile than its first iteration, but it also makes it less special, and less enjoyable when it comes to vocals. *Treble* : The treble on the MKII is good, though not the best. For me, the upper region lacks a bit of air, which can make the overall presentation slightly dark and cost it some technicality. That said, it remains textured, detailed, and more elevated than the first iteration. Still, I miss a touch of sparkle and upper brilliance to feel fully satisfied. It’s understandable, though, as balancing such strong bass without pushing the mids too far back is a challenge. In the end, the treble is smooth, detailed enough, non-fatiguing, and even quite engaging — but it doesn’t quite reach the level where it truly impresses me. It can feel too congested on heavy tracks. *technicalities* : The MKII is technical, but not a technical monster. Its tuning leans toward a more relaxed and pleasant presentation, yet it still delivers micro details, contrast, and dynamics. To give you a reference, the level of detail is similar to the Moondrop Blessing 2 Dusk — not ground-breaking in 2025, but more than enough for me. I’m not a detail head, and an excess of details often makes listening fatiguing, so this balance works perfectly for my taste. Again, I could be nit-picking about this lack of airiness making the set less technical. *soundstage* : The soundstage of the MKII is impressive for an IEM: spacious, deep, and very precise. It creates a holographic image with surprising verticality, giving a truly immersive “around you” 3D feeling. Instead of sounding too “in your head,” it places instruments close around you, with some elements even extending far depending on the mix. That type of soundstage is rare to find in an IEM. Not the best I’ve heard, but still very good. ***Some songs with impression*** *Bodysnatchers* *- Radiohead / 2007* This song is very intense, and is composed of 2 different style, from 00:00 to 02:04, for the more Rock part, the RSV MKII does great, it manages to keep the intensity and energy of the song without any sibilance or being fatiguing, it also keeps the details of all the elements of the mix, I didn't like I was missing something. But again, I would have like more air in the upper region, because of the lack of it, the wholee felt too congested, not open enough, which is important on very busy tracks like this one. For the singing part from 02:04 to around 03:07, this is where the MKII didn't do that great the voice of Thom Yorke wasn't standing out enough in the mix, making it less enjoyable, and giving me less emotion than on some other sets. *Marooned* *- Pink Floyd / 1994* This is one this type of music that the RSV MKII feels the weaker, it lacks this upper sparkle and air, which is making the treble (so most of the mix) not pleasant enough, you don't feel it as much on more busy track, but here this lack of air stands out a lot. I am craving more air more brilliance when listenning to this song with the MKII *Once Again* \- *Clann / 2017* On very ambient and immersive tracks like this one, the MKII is really good thank to its immersive soundstage and powerfull bass, it felt very emotional, I really felt like I was *IN* the music, this type of goosebumps you can have when your device suits this specific track really well, here it's the case, the MKII is warm, lush, immersive and with good bass, exactly what *Once Again* is asking for to be properly appreciated. Because of that, I think the MKII will work really well with traditional warm songs like *Helvegen* for example. *Meds* *- Placebo / 2006* This music has a very intense passage at the end, with lots of instruments, a powerful voice and everything performed in a very dynamic way. This moment is very punishing for IEMs with a sound that is too piercing or not precise enough, because it then becomes unpleasant, being painful or sounding like a jumble of indistinct elements. The RSV MKII preserves all the elements and details well, which is a good thing, but it presents the sound in a very intense and energetic way. As a result, I often need to turn down the volume to continue enjoying the loud passage with the MKII, at the risk of the sound becoming too loud for me. On the other hand, the separation is good and well executed to maintain the overall coherence of the sound. **Comparaison** **.VS 7th Acoustics Supernova** The Supernova are my reference when it comes to all BAs sets, I also liked the SA6 OG from Dunu, and the OG RSV from Softears, but usually I am more of a “hybrid setup” guy. With that said, one of the advantages the all BAs sets often have is the coherency of the sound, with smooth transitions between frequencies while maintaining a good separation between the elements. Some hybrid sets feel like the frequencies are not “working together” anymore, and it kinda breaks the listening experience. Here it is not the case for either of those sets. They have a very pleasant and cohesive overall sound, but this is where the similarities stop. The Supernova has less bass, a more meaty midrange and its treble is more elevated. Because of that, when you crank the volume up, the Supernova has a very natural midrange, near lifelike, a very sparkly, airy treble region while staying neutral, and without being fatiguing or sibilant. The bass of the Supernova are not as good as the RSV MKII’s, they feel less impactful, they aren’t hitting as deep and as precisely as on the RSV MKII, they are enough for me, but not in the best quality. On the other hand, the treble of the Supernova is really magical, while they lack this upper brilliance on the MKII. The mid range also feels more natural and forward on the Supernova. The RSV MKII would work better on very bass demanding tracks, but I would take the Supernova on pretty much any other music genre. **Conclusion** : While they are both great sets and trading blows on some factors, the Supernova really feel more special to me, the RSV MKII really give me this “deja-vu” impression, it is good, versatile, but you can find a lot of similarly tuned sets in the market, whereas the Supernova really is original, and is offering more than just a “good” sound, while staying very versatile in my opinion. **.VS OG RSV** (sorry for the photo, I don't have the RSV OG no more ) It is quite simple here, I feel like the MKII has pretty much the same treble experience as the RSV OG, better bass than it, and doesn't have this very unique and emotional midrange. The MKII will be more versatile and less fatiguing than the OG, but it will not be the “vocals specialist” anymore, it is “just” a good set. Also, the RSV had less bass, allowing me to crank the volume more, and to feel like its presentation was a little bit more airy and detailed than the MKII, but it is very subtle. **conclusion** : The Softears MKII is more versatile in its tuning than its predecessor, but it doesn’t have the very unique vocal quality of the OG RSV. If I could only have one, I would take the MKII, while knowing that this set will be good on everything but will not make me feel the same emotions as the OG RSV **Conclusion and recommendation** *Who is this set for :* \-If you are looking for a very versatile tuning that will suit pretty much any music genre. \-If you want the BAs coherency while keeping very good bass. \-If you are searching for a beautiful IEM. \-If you want a fun and dynamic but non-fatiguing sound. *Who this set isn't for :* \-If you are looking for a specialist. \-If you’re a treble-head. \-If you want the best value for money. \-If you want a neutral/bright sound presentation. **My thoughts** I liked the Softears RSV MKII, but not enough to recommend it, taking its price into account. This set is great, but doesn’t offer anything really special that would make it shine in the mass. Its bass is very good, and is its best point, but the midrange is just good, without anything very special, unlike the first iteration of RSV, and its treble is detailed, has a good texture but lacks some air, even making the set too dark at lower volume. So unless you really love the design of the set (which is beautiful I agree), or you absolutely want all the Softears sets, I don’t think this one is a very good value for its price, the Mega5est or the Supernova as good with a “special sauce” to them making them more unique (lifelike timbre, beautiful treble etc). And like I said, this set is good at everything, special for nothing. It’s disappointing because I loved the RSV OG and the Volume S, which are, for me, really unique.

Yes really ! I am also very treble-sensitive, and the upper region is often my final decision factor. Even some sets which no one found too intense in the treble are for me, like the Xenns Tea Pro. For the moment, I found the best balance in 3 sets, the Yanyin Canon pro, Softears Volume S and 7Th Acoustics Supernova, they are the only 3 which had enough energy and upper brilliance without making an hole in my eardums ahah.

Thank you! The Volume S is definitely a great buy.

I was gonna say the Top Pro but then I saw “neutral to warm”. That’s the Volume S, absolutely beautiful timber, fun, neutral and warm-ish

Very different, I like both but Volume S if I’m to pick

The Martilo is Bass dominant IEM, the midrange and treble are actually good and balanced but nothing special, I only listen to the Martilo if I want a lot of Bass. The Volume S is neutral with Bass boost, but the timbre on it and the way it’s tuned feels so silky smooth and correct, i don’t know how describe it other than to say it sounds nice and beautiful.

You can feel the Sub-bass more in the P7, the mid bass feels similar, but the texture of the bass on the Volume S is better to my ears. It’s great on the P7 it’s just feels better on the Softears

They’re different, the Studio for is more raw and neutral, I like both but prefer the Volume S.

Both are neutral but the soundstage on the Volume S isn’t its strength, the Volume S is warmer and bassier, better technicality for sure. I don’t think they’re very similar though, I’d say the Studio 4 or pilgrim are more similar to the Hexa with wider soundstage.

Oh yes, there’s a big gap between the two, I rarely use the defiant, I use the Volume S at least once a week. For Technicality I wouldn’t say the volume S is in the top 5 IEMs I have, but in terms of how it’s sounds it’s definitely up there.

This describes very accurately how I felt about the Volume S and why I returned it. They would be a keeper if it was priced at \~$100 or less, sitting next to sets like the Hexa and Pure. At $300+, it felt like such a poor value compared to all the better sounding IEMs in this price bracket.

I agree the highs on the Volume S can be a bit fatiguing after considerable listening.

Extend your budget and go buy Softear Volume S in BF sales. Look no further.

how would you compare the treble/cymbals between the two? Honestly I had the Volume S but they weren't doing it for me with regards to the treble so I returned them. And I impulse ordered the Aether for $120 but they haven't arrived yet.

I didn’t really enjoy the Volume S, think the Martilo is much more enjoyable

Interesting. I thought the highs on the Volume S were so recessed that I returned them within a week. Cymbals sounded dead.

300 is a really good price with lots of gems. My obsession at the moment is the Softears Volume S. 300 is a lot of money for iems so take your time. Watch reviews to identify some appealing sets, then do research on those and you won't miss that one set that checks your boxes

Just from personal experience, Myeraudio CKLVX D41 but that just my limited experience. Much wider sounding than my Softears Volume S.

The vocals on Softears volume S pop with intense clarity and there’s a lot of dense warmth to male vocals which I love and female vocals go satisfyingly high.

Softears Volume S is super lush and natural while having insane bass quality. Vocals pop and treble is smooth like melted butter

Also if you stretch your budget a bit Softears Volume S is phenomenal

I’ve been eagerly anticipating the **Softears Studio 4**, but the wait has been well worth it. At least with the **Softears Volume S**, I can fully appreciate Softears’ exceptional tuning. The **Volume S** is everything I hoped for and more. * **One-and-Done IEM ?** The **Volume S** is flat but not boring—it sounds and feels fantastic. While the switch feels a bit finicky, my first impression is overwhelmingly positive. I really like it. In short, the **Softears Volume S** is the type of IEM I can call a “one-and-done” purchase. It stands out with its bass control, perfect tuning, and well-balanced timbre—without ever becoming overwhelming. After experiencing the **Volume S**, I’d hesitate to pay more for other IEMs, not just from a listening perspective but also from a gaming perspective. * **Comfort vs Sound Quality** I’ve had a few IEMs in the past that were uncomfortable but offered great sound. However, the **Volume S** is different. It delivers excellent sound quality without compromising comfort, making it a true standout. # The Softears Volume S is an absolute indulgence. Its timbre is simply unparalleled, making it irresistibly addictive to listen to. The comfort and sound quality have made it my go-to IEM. I’m glad I explored alternatives, as the Volume S has become a true standout with its incredibly satisfying bass and technical performance. * **Gaming Performance** I also use the **Softears Volume S** for gaming, and it performs exceptionally well. I often listen to podcasts or music in the background while gaming, and many IEMs fail to balance both without feeling congested or distracting. Only a few IEMs have passed this test for me, and the **Volume S** is one of the best I’ve tried. It’s ideal for gaming, offering clear and engaging audio while ensuring that background sounds don’t overwhelm the main action. I’m truly happy to own it. * **Sound Signature & Genre Recommendations** The **Softears Volume S** excels across a variety of genres, including **Acoustic, Jazz, Indie, Classical Vocals, Pop, and R&B**, making it a versatile all-rounder. * The bass is tight and well-controlled. * Vocals are expressive and natural. * The overall sound is clean and clear, free from harshness or artificial coloration. The **Volume S** offers a refined listening experience with a mid-centric focus, making it perfect for anyone who enjoys well-balanced sound. One thing to note is the impedance dial. Personally, I find the low-impedance setting to be the most satisfying for my needs. * **EQ and Driver Quality** I tried using **AutoEQ** to replicate the sound of the **Volume S** on other IEMs while waiting for it to arrive, but I soon realized that no amount of EQ could truly match the natural timbre and driver quality of the **Volume S**. The results were acceptable, but they didn’t come close to the real experience. For anyone curious, I highly recommend listening to the **Volume S** to understand just how much driver quality and timbre cannot be replicated through EQ alone. # Final Thoughts In conclusion, the **Softears Volume S** is a top-tier IEM that blends comfort, sound quality, and versatility. Whether I'm using it for music or gaming, it excels in all areas, offering an engaging and enjoyable experience. If you are looking for a balanced and technically capable IEM, the **Volume S** is definitely worth considering.

I tested Astrix's psychedelic track on three IEMs: the Tanchjim Origin, Softears Volume S, and Dunu Da Vinci. On the Volume S, the bass stood out as thumpy, full, and clear, with excellent layering. I could hear multiple layers distinctly, with the background music staying in its place without overpowering the main elements. Despite this separation, all details remained audible across the layers. The song starts off slow, but right from the beginning, the Softears Volume S made it enjoyable. It maintained engagement even in the slower intro, setting the stage for the rest of the track. As the song progressed, I found myself increasing the volume above my usual listening level, especially with the Volume S, which delivered the most satisfying bass drop. It felt like the Volume S pushed my eardrum to an optimal level, creating a pleasurable listening experience. Among the three, it was the best performer for this track. On the Tanchjim Origin, the female vocals sounded calm, and the track had a generally polite character. I liked how it presented the song in a more relaxed manner. However, on the Volume S, the performance felt like the correct way to experience this track, more engaging, dynamic, and immersive. The Dunu Da Vinci, while still competent, lacked the same level of detail as the other two. Interestingly, I found myself lowering the volume on the Da Vinci instead of increasing it, which suggests it didn’t deliver the same impact or clarity in this track. Overall, the Softears Volume S provided the best experience, followed by the Tanchjim Origin, with the Dunu Da Vinci coming in last.

For Gaming volume S better hands down.