By aspect — in detail
In its main low-impedance mode, broadly agreed to be a warm-neutral, reference-leaning tuning that most call coherent and musical rather than clinical — several sources note how close it sits to Crinacle's JM-1 target. The lone real dissent hears the balance as inconsistent. The second, high-impedance mode leans brighter and thinner and is the more contested half.
“In low-impedance mode, the Volume S features a warm-neutral profile with a nice bass emphasis while maintaining a balanced tuning.”
Nihal, Headfonics
“one of the only IEMs I’ve ever encountered that I’d say earns the designation of “neutral” from top to bottom.”
Listener, Headphones.com
“The Softears Volume S leans towards a sub-bass boosted neutral reference tuning, but it’s not sterile or flat”
Twister6
“It’s a perfectly imperfect set with a focused midcentric sound but incoherent and messy tonality.”
kesobie, AudioNotions
Measured
Measured on Crinacle's B&K 5128 (ITU-T P.57 Type 4.3) database in both modes, the low-impedance voicing tracks close to the JM-1 target — a sub-bass-boosted neutral with roughly balanced sub- and mid-bass and a touch of extra upper-bass warmth; the high-impedance mode adds treble and leans out the low end.
Bass
Strong consensus · 10 srcThe most consistent strength, and the aspect reviewers single out most. The dynamic-driver + passive-radiator low end is repeatedly called dense, deep, fast and unusually well-textured for the price — frequently 'best in its bracket.' The one shared caveat: this is quality over quantity, not a basshead set.
“For me, it has one of the best bass responses among IEMs in its price range.”
Nihal, Headfonics
“While it won’t satisfy bassheads looking for slam and physical punch, the bass is audiophile-grade: articulate, deep, and fast.”
Twister6
“Some of the best bass in the $300 range”
The Metalverse
“It’s got this really satisfying, physical rumble that you can actually feel more than just hear”
arifgraphy, Sonic Mantra
Measured
The low end is produced by a 10 mm dynamic driver paired with an inverted 6 mm wool-paper passive radiator; measurements show real sub-bass extension over a clean, uncoloured mid-bass rather than a big mid-bass hump — consistent with reviewers who hear depth and texture but not basshead slam.
Widely praised as rich, natural and intimate — for several sources (and owners) the vocals are the highlight of the set. The recurring qualifier is the upper midrange: elevated for clarity, it can thin out or edge toward sharpness on female vocals and poorly recorded tracks.
“The midrange is arguably the Volume S’s most impressive trait.”
Twister6
“The mids are the star of the show.”
ext_trt, r/inearfidelity
“Towards the upper midrange, the notes start to thin out a bit.”
Nihal, Headfonics
“Midrange is okay for me but still isn’t perfect”
Listener, Headphones.com
The most divisive frequency range. Most sources hear it as smooth, safe and gently rolled-off — non-fatiguing and friendly to treble-sensitive listeners, but short on air and sparkle for some. A sizable minority hear enough presence-region energy that it can turn lively or even sharp on bright, loud or poorly mastered tracks. A couple of measurement-minded reviewers instead praise it as well-judged and nicely extended — so 'dark' isn't unanimous either.
Measured
In low-impedance mode the tuning avoids a hot 5–6 kHz peak and shifts presence energy higher (toward ~14 kHz) over a gently rolled-off top octave; the high-impedance mode adds roughly 6 dB of treble gain.
⚠ vs. listeners — The same curve reads both ways: the rolled-off top octave is what the 'smooth/safe' camp hears, while the elevated presence region — pushed further by bright sources, the high-impedance mode, wide-bore tips or high volume — is what the 'can get spicy' camp reacts to, so tips, source and mode swing which one dominates.
Where it splits
Smooth, safe and gently rolled-off up top — non-fatiguing, but some want more air and sparkle60%
“The upper treble is slightly rolled off and does not feel particularly airy.”
Nihal, Headfonics
Real presence that can turn sharp/spicy on bright or loud tracks40%
“Can get a bit sharp occasionally at high volumes on poorly mastered tracks.”
ext_trt, r/inearfidelity
Soundstage
Moderate · 8 srcThe acknowledged weak axis. Most reviewers hear an intimate, moderately sized stage — depth and layering earn praise more often than width, and height is repeatedly called the weakest dimension. One reviewer is a clear outlier, hearing it as genuinely wide.
“things still sound small overall.”
Listener, Headphones.com
“Soundstage width and depth are respectable without being exceptional.”
The Metalverse
“The star here is the depth – foreground, mid-ground, and background elements are clearly layered.”
Twister6
“Very good in height and width, average in depth.”
IEMs and Music
Generally rated a strength — clean separation and precise, spatially-distinct placement for the price — with one notable dissent that finds instrument positioning only average.
“instrumental placement is razor-sharp, especially in centre and lateral imaging.”
Twister6
“imaging has no room to be upset about, it is seriously very good.”
mournfulmonk, r/iems
“the imaging capability is just average, with some lack of precision in instrument positioning.”
Nihal, Headfonics
Sources genuinely split. One camp finds it exceptionally resolving for the money — one reviewer rates it more detailed than kilobuck sets — while another finds resolution and separation merely average, or even lackluster, for $319, arguing it's tuned for enjoyment over last-word detail.
Where it splits
Class-leading resolution — punches past its price55%
“I think Volume S is a very detailed IEM, while not making you accept nearly the degree of tonal compromise other “very detailed IEMs” would ask you to accept.”
Listener, Headphones.com
Only average / lackluster resolution for the price45%
“Volume S is not exceptional at resolving finer details, as some microdetails tend to be missing.”
Nihal, Headfonics
Dynamics
Strong consensus · 5 srcA quiet strength wherever it's discussed: punchy, engaging macro-dynamics and expressive micro-dynamics that keep the presentation lively rather than flat — one reviewer calls it the set's greatest technical trait.
“Macrodynamics are excellent – the Volume S can deliver impactful crescendos and percussive attacks.”
Twister6
“This is probably its greatest technical aspect, honestly.”
arifgraphy, Sonic Mantra
“Dynamics are punchy and engaging.”
The Metalverse
A near-universal positive with one consistent asterisk. The light, ergonomic, well-sculpted shell is comfortable for long sessions and produces little pressure — but it's on the large, wide side and protrudes, so small-eared listeners are repeatedly told to try before they buy.
“Though the shells are on the larger side, the lightweight and highly ergonomic design makes the IEM very comfortable to use.”
Nihal, Headfonics
“They are relatively wide and therefore protrude from the ear.”
Ryan Soo, Everyday Listening
“it’s just a legitimately comfortable IEM with almost 0 pressure points even after hours of wear.”
kesobie, AudioNotions
The carbon-and-aluminium faceplate and tidy resin shell draw mostly praise as premium and well-finished, and the accessories package (a modular 3.5/4.4 mm cable, case and tips) is a near-universal highlight. Two dents: the paracord stock cable is a recurring microphonics gripe most reviewers mention, and one critic finds the shell resin itself cheap.
“The aesthetic is premium and svelte, more so to my ears than most similarly priced competitors.”
Ryan Soo, Everyday Listening
“In this price range, I have not come across any other IEM with a more thoughtful selection of accessories.”
Nihal, Headfonics
“The included braided cloth cable is well-built but quite microphonic.”
ext_trt, r/inearfidelity
“This resin feels so cheap and rubbery”
kesobie, AudioNotions
Isolation
Moderate · 6 srcRated above average for a vented hybrid — enough for commuting, public transport or studio use — while still short of a fully sealed monitor. The shell's rear pressure-relief venting is the reason it isolates well without building up pressure.
“Passive noise isolation is above average for a vented hybrid IEM, especially low frequencies.”
Ryan Soo, Everyday Listening
“Even with a relatively large vent on the faceplate, external noise does not seep in.”
Nihal, Headfonics
“Isolation is quite good—slightly below custom-level sealing but enough for daily commuting or studio work.”
Twister6
The consensus lands firmly positive: most reviewers frame it as a coherent, do-it-all reference set that punches above $319 on tuning, bass quality, build and accessories — several call it an end-game or benchmark at the price. The dissent is a value-through-resolution one: a critic who finds the technical performance short of the asking price.
“In the highly competitive $300 market, the Volume S stands out due to its tuning and overall packaging.”
Nihal, Headfonics
“Volume S is one of the best you can buy at its price point”
Twister6
“Otherwise, this punches well above its price point.”
ext_trt, r/inearfidelity
“Resolution is poor for the price”
kesobie, AudioNotions
