Aful Cantor VS Softears RSV MK II
IEM Comparison: Expert & Community Scores Side-by-Side
Aful Cantor and Softears RSV MK II use 14BA and 5BA driver setups respectively. Aful Cantor costs $800 while Softears RSV MK II costs $700. Aful Cantor is $100 more expensive. Softears RSV MK II holds a slight 0.4-point edge in reviewer scores (7.7 vs 8.1). Aful Cantor carries a user score of 8.5. Aful Cantor has better treble with a 0.9-point edge, Softears RSV MK II has significantly better dynamics with a 1.8-point edge, Aful Cantor has significantly better details with a 1.1-point edge and Aful Cantor has better imaging with a 0.5-point edge.
Insights
| Metric | Aful Cantor | Softears RSV MK II |
|---|---|---|
| Bass | 8 | 8.1 |
| Mids | 7.8 | 7.8 |
| Treble | 8.8 | 7.9 |
| Details | 9 | 7.9 |
| Soundstage | 8.3 | 8.1 |
| Imaging | 8.5 | 8 |
| Dynamics | 6 | 7.8 |
| Tonality | 8 | 8.4 |
| Technicalities | 9.1 | 7.9 |
Aful Cantor Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
7.7Strongly Favorable
Softears RSV MK II Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
8.1Very Positive
Reviews Comparison
Aful Cantor reviewed by Jaytiss
8.8
Reviewer Score
Youtube Video Summary
The AFUL Cantor delivers a balanced and neutral sound signature, praised for its exceptional upper air, treble extension, and pristine clarity. While the bass offers sufficient dynamics without being thunderous, and female vocals sound natural, some listeners might desire a touch more punch in the upper mids (around 2-3kHz) and find a slight peak in the 4-6kHz region occasionally noticeable. The premium build quality stands out, featuring a unique and stunning "star night" face plate, a thick but comfortable shell with a slender nozzle, and excellent accessories. These include a slightly microphonic but otherwise nice-looking flat two-pin cable and an exceptionally plush case typically found on far more expensive IEMs.
Graph comparisons reveal the Cantor's tuning shares similarities with models like the Moondrop Blessing 2: Dusk and the AFUL Explorer, but it distinguishes itself with superior detail retrieval and dynamics. It competes impressively against significantly pricier offerings like the Elysian Annihilator in technical performance, offering a smoother presentation with slightly less sub-bass focus. The overall sonic presentation is described as sophisticated, refined, and highly engaging, creating a sense of music surrounding the listener. Minor tuning preferences aside – wishing for a bit more upper mid presence and slightly less energy around 4-6kHz and 8kHz – the core sound quality is highly regarded.
Representing strong sonic value despite its price point, the Cantor earns a high ranking for its unique and beautiful design, premium feel, and exceptional technical performance. While acknowledging excellent cheaper options like the AFUL Explorer exist, the Cantor justifies its cost with its detailed, airy presentation and overall package. It's highly recommended for those seeking a neutral, high-performing IEM, though a demo is advised given the investment. Ultimately, the AFUL Cantor is considered a treasure, fulfilling over a year of anticipation with its beautiful aesthetics and uniquely engaging sound.
Jaytiss Youtube Channel
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Softears RSV MK II reviewed by Jaytiss
8.9
Reviewer Score
Jaytiss Youtube Channel
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Aful Cantor reviewed by Audionotions
8
Reviewer Score
Softears RSV MK II reviewed by Audionotions
8
Reviewer Score
Aful Cantor reviewed by Jays Audio
7
Reviewer Score
Youtube Video Summary
The Aful Cantor presents a complex and frustrating case, offering what might be some of the most detailed and resolving performance under $1,000. The clarity, separation, and sheer resolution are described as "pretty nuts," positioning the Cantor as a potential benchmark for technical ability. It delivers a clean, smooth, light, and airy sound signature with a bass that is very fast, lean, and features a tight sub-bass rumble. At lower volumes, this presentation is highly enjoyable and non-fatiguing, making it exceptionally good for critical, quiet listening sessions where its technical prowess can shine without drawback.
However, this technical marvel comes with a significant and unusual caveat: it is physically fatiguing to the point of causing headaches and a ringing sensation in the temples after only 15-30 minutes of listening at moderate volumes (around 70-80 dB). This is not a fit or nozzle issue, but rather an inherent property of the IEM itself. The problem manifests as a shrill and overly intense quality in the treble at higher volumes, accompanied by a metallic timbre on tracks with lots of cymbals, making it unsuitable for energetic genres like K-pop, J-pop, or EDM. This shrillness is not fully solved by EQ and is believed to be related to the driver design, nozzle, or venting rather than just the tuning.
When compared to peers, the Cantor is more resolving than the warmer, fuller, and smoother Letshuoer Supernova but falls short of its natural timbre. It also can't match the Monarch MK3 as an all-rounder, which offers a more impactful bass, better vocals, and a smoother, more engaging experience. The Cantor's vocals are also a weak point, being recessed, light, and borderline thin. The final recommendation is to definitely demo these first; they are only easy to recommend for those who listen at very low volumes (under 60 dB) and are not sensitive to treble intensity, as its scaling at normal listening levels is poor.
Jays Audio Youtube Channel
Softears RSV MK II reviewed by Jays Audio
8
Reviewer Score
Youtube Video Summary
Softears RSV MK2 shifts from the OG’s vocal-centric tilt into a bass-forward all-rounder. The sub-bass and mid-bass hit with real slam and weight, giving drums and bass guitars a satisfying, dynamic punch. Upper mids (3–6 kHz) are tamed to avoid shout, while a gentle 1–2 kHz rise keeps vocals open and natural—slightly less pushed than the original but still clear. Treble is smooth with decent air; not super sparkly and there’s no EST “sauce,” but it stays clean and non-fatiguing.
As a package, MK2’s standout is the low-end texture—thunderous yet controlled—making it one of the more engaging bassy sets under four figures. Technical performance is solid for the tier, though some rivals at lower prices bring more raw detail and EST extension. Build and accessories get a tasteful, modern refresh. For best balance, the stock tips work well; bass-boosting or treble-opening tips can shift it toward a more V-shape at the expense of overall smoothness.
On genre fit, MK2 shines with hip-hop, pop, EDM, and R&B, where its punch and warmth bring rhythms to life; for orchestral or leaner acoustic picks, the bass can edge forward depending on the mix. It scales to mid–high volumes nicely (around the 70–80 dB zone) without turning sharp. Compared with the OG RSV—now likely affected by a silent retune in recent units—the MK2 is the safer buy: less shout, more authority down low, and a broader all-rounder appeal. Recommended, especially if found below full MSRP, for listeners craving tasteful bass with natural mids and relaxed, smooth treble.
Jays Audio Youtube Channel
Aful Cantor reviewed by Super* Review
6*
* score rescaled + normalized
Youtube Video Summary
The AFUL Cantor lands as a flagship all-BA set with 14 balanced armatures at $800, packaged with a great-handling nylon cable and a handsome shell. The catch is fit: a very long nozzle with a metal insert demands a deep insertion, and comfort varies widely; AFUL’s stock tips are essentially required to keep that nozzle from poking and to restore some flex. Build and presentation impress, but the ear-fit can be fussy and the shells tend to stick out.
Tuning trends U-shaped: a lower-mid dip into a hefty sub-bass boost, relaxed upper mids, and noticeable upper-treble energy. When seated correctly, the set delivers crisp transients with a touch of “planar-like” pluck, good imaging, and clean BA bass that favors electronic thump over kick-drum slam; with the wrong tip or depth it swings to brittle/bright or muted. The midrange can read a bit thin, so the contrast comes more from bass/treble edges than from vocal saturation.
Compared with Symphonium Helios, both are all-BA and graph-adjacent, but Helios leans vocal-forward and smooth while Cantor is the more contrasty, fun listen that trades mid presence for excitement. Net: technically capable and competitive when dialed in, yet compromised by comfort and tip dependence. Final verdict: 3/5 stars—a better match for listeners with deep pockets and deep ears.
Super* Review original ranking
Super* Review Youtube ChannelSoftears RSV MK II reviewed by Super* Review
8*
* score rescaled + normalized
Youtube Video Summary
Softears RSV MK II brings back the all-BA ethos at $700 with five armatures and a promise of “re-engineered BA bass.” Build and accessories feel premium (sleek shells, plush case), while the cable choice is quirky—4.4 mm only with a 3.5 mm pigtail. Fit is outstandingly secure and custom-like but on the larger side with a longer nozzle, so comfort depends on ear size. Softears’ Ultra Clear tips work well; the new metal-ring variant adds little beyond novelty.
On the graph, bass looks like gigabass, yet in ear it settles into a warm, weighty foundation without steamrolling the mids. The midrange follows a “new-meta neutral” tilt—fuller than Harman with forward upper-mids—while treble lands clean and sparkly without fatigue. Imaging is tidy rather than cavernous; separation and delineation are convincing, with the top end executed better than the bottom. BA bass here is among the more physical and satisfying of its kind, though tactility can be track-dependent and turn a bit tubby on very bass-heavy mixes.
Against peers, Symphonium Meteor sounds warmer and more “special” but less all-round; DUNU SA6 MK2 is more colored with janglier treble and the least convincing bass; 7th Acoustics Supernova trades warmth for vivid, bright-tilted imaging; Softears Studio 4 is lighter on bass and airier; and the old Moondrop S8 stays the lively, vocal-centric counterpoint. Net take: a supremely competent, character-light all-rounder that favors bass weight over panoramic staging. Verdict: 4/5 stars—a welcome throwback done right, and notably cheaper than the original RSV launch price.
Super* Review original ranking
Super* Review Youtube ChannelAful Cantor reviewed by Head-Fi.org
8.4
* score rescaled + normalized
Softears RSV MK II reviewed by Head-Fi.org
8.2
* score rescaled + normalized
Aful Cantor (more reviews)
Aful Cantor reviewed by Z-Reviews
8.5
* score rescaled + normalized
Youtube Video Summary
This is AFUL’s flagship science project: the Cantor packs 14 BAs per side (28 total) and a heap of buzzword tech—Dual-Channel Acoustic Maze for sub-bass, non-destructive direct-drive topology, and multi-dimensional crossover trickery that reads like Star Trek schematics. The housing even extends a stainless-steel nozzle to the tip’s end to bypass tip coloration—smart for consistency, dicey for ears with wide-bore silicones. Stick to the stock silicones or better yet foams to calm treble and avoid any scrape-risk.
Sonically it’s a hyper-resolving analyzer: every band is so present that volume tends to go down, not up, and mediocre recordings get roasted on the spot. Imaging is precise but a bit less cohesive than simpler sets; stage stays as the track dictates, while separation feels like a mixing desk with 14 faders. The sub-bass dives shockingly deep for an all-BA—think whisper-low “whoomp”—yet it isn’t a bass-monster; overall balance leans revealing rather than lush.
Pairing matters: clinical amps make it razor-edged, while warmer sources (R2R, iFi, RME-ish) and foam tips smooth it into addictive detail. At $800 it isn’t the one IEM to rule them all; it’s the specialist tool for listeners who want to dissect space, mic technique, and mix decisions—more control room than mosh pit. Cable and case are solid (4.4 mm balanced), and a tuning switch would have been nice, but for the right kind of nerd this thing lets you become the squig.
Z-Reviews Youtube Channel
Aful Cantor reviewed by Kois Archive
8.4
Reviewer Score
Youtube Video Summary
AFUL Cantor is a 14-BA, ~$800 set that looks premium and shows off its acoustic maze tubing through a semi-transparent shell, with faceplates in Star Knight or Marine Echo. The fit can be tricky: a long metal nozzle wants a deep insertion, and short tips won’t seal; longer tips like SoftEars Ultra Clear or Dunu S&S keep the nozzle covered and the tonality stable. The stock nylon cable feels nice but is very microphonic, making a swap advisable. Measurement quirks from shallow insertion are misleading—proper deep fit removes the apparent treble spike and reflects what’s actually heard.
Tuning follows the AFUL house sound: a mild U-shape, fairly neutral with a brightish tilt. The maze tech gives BA bass surprising decay and texture, with neutral mid-bass and a touch more sub-bass focus—close to a DD feel, if not identical. Mids sit clean; female vocals sound natural and sweetened by the steady rise through the upper-mids, while a gentle ~300 Hz dip makes male vocals and lower-octave instruments a bit lean. Treble is smooth yet energetic, with standout extension (impressively achieved without ESTs); it hovers near the upper tolerance for brightness but remains controlled with the right tips.
Technical performance is where Cantor shines: top-tier resolution, precise imaging, and a notably wide soundstage—great for detail retrieval and gaming, where positional cues pop (think footstep clarity in FPS titles). Versus Performer 7, Cantor trades P7’s fuller low-mids and better male vocals for cleaner female vocals and a more even treble. Against 64 Audio U12t, Cantor’s bass quality impresses, its mids differ (U12t’s 3 kHz dip adds sweetness but can feel odd), and Cantor’s treble sounds smoother; both resolve at a very high level, with Cantor edging imaging and stage width. Overall: an excellent but not universal pick—cable microphonics, deep-fit demands, and slightly thin lower mids mean careful matching to preferences. For detail lovers with female-vocal libraries who tolerate a brighter treble, it earns a one-star recommendation; others may prefer alternatives in this bracket.
Kois Archive Youtube Channel
Aful Cantor reviewed by Shuwa-T
8.3
Reviewer Score
Aful Cantor reviewed by Gizaudio Axel
8
Reviewer Score
Gizaudio Axel original ranking
Gizaudio Axel Youtube ChannelAful Cantor reviewed by Audio Amigo
6
* score rescaled + normalized
Youtube Video Summary
AFUL’s $800 flagship pushes hard on engineering: 14 balanced armatures, a five-way network, 3D-printed shells, and the brand’s acoustic maze that coaxes unusually textured, dynamic-driver-like bass out of an all-BA setup. Packaging is “classic AFUL”—nice case, multiple tip sets, cleaning brush—but light for the price, and the cloth-sheathed cable, while beautifully machined and very low resistance, is highly microphonic. The big talking point is the metal nozzle extension: tips must be pushed down to the rim for a deep fit, which optimizes tonality and treble smoothness. Comfort varies wildly by ear; some report irritation, and the long nozzle feels fragile if dropped.
Sonically, this is AFUL’s house sound elevated: a slightly warm-neutral balance with clean, meaty lows, natural mids, and an upper-mid/treble that sits right on the edge—silky and detailed with a deep fit, but bright and fatiguing if worn shallow or with the wrong tips. It is extremely revealing of mastering quality, rewarding good recordings with elite microdetail, imaging, and a huge, tall stage that can hang with far pricier sets. A mild impedance adapter (or higher-Z source) can warm the tone and shave some air, though at a small cost to sparkle and openness.
Against AFUL’s own lineup, the closest kin is the Performer 7: similar flavor, less resolution and scale, but a far better value. Cantor is the brand’s “thesis statement”—the most complete execution of its tuning—with true summit-fi technicals at a mid-summit price. Still, it carries caveats: fit sensitivity, that microphonic cable, and accessory stinginess. Recommended only if the budget is comfortable, a deep, stable fit is achievable and comfortable for long sessions, and AFUL’s warm-neutral house sound already hits the spot; for everyone else, the P7 or Explorer make safer picks.
Audio Amigo Youtube Channel
Softears RSV MK II (more reviews)
Softears RSV MK II reviewed by Fox Told Me So
7.8
Reviewer Score
On the graph, it diverges from JM-1 or Harman, choosing its own path. Sub-200 Hz is elevated, giving the bass notable weight and warmth, but also risking congestion. A dip between 200–600 Hz thins mids and robs some body from vocals and instruments, though it does clean up edges. Then comes a surprising 14 kHz BA-driven peak, adding air, shimmer, and openness—rare for an all-BA set!
In practice, bass hits with real presence for BA, punchy and convincing though not as deep as DD. Mids lean slightly thin, a bit lack of density, making instruments less woody. Treble is airy and crisp thanks to that 14k lift, but may edge bright for sensitive listeners. Stage favors forward bass and a sense of openness, though not massive in depth.
Verdict: It’s bassy, airy, and a touch thin in the middle—a distinct tuning philosophy that stands apart from the crowd.
Fox Told Me So original ranking
Fox Told Me So Youtube Channel
Softears RSV MK II reviewed by Web Search
8
Reviewer Score
The Softears RSV MK II refines the original RSV with an all-5BA design and a 4-way crossover, targeting a stable “reference sound” while improving driver control and airflow management. It’s easy to drive at 122 dB/Vrms, 7 Ω, and the build mixes medical-grade resin with CNC-milled aluminum and forged carbon for a robust, low-resonance shell; MSRP is $699.
On paper, the tuning remains neutral with a bass lift: dual Knowles CI22955 woofers aim to give BA-bass more texture and weight, an improved ED driver anchors clean mids, and a SWFK unit handles upper treble for a smoother, less fatiguing top end. Softears’ LRC network and dual pressure-relief approach target consistent FR and reduced ear pressure, which should aid long listening sessions and imaging stability.
Subjectively, this positions the RSV MK II as a coherent, midrange-centric set with tight, controlled low-end rather than maximal slam, and a smooth treble that trades sparkle for fatigue-free listening. Soundstage is moderately wide with tidy imaging; technicalities are competitive for the class but won’t chase ultra-etched detail specialists. Given the tuning goals and efficient drive requirements, value will appeal most to listeners prioritizing tonal accuracy and midrange timbre over sheer sub-bass impact or treble air.
Aful Cantor Details
Driver Configuration: 14BA
Tuning Type: Vocal-focused
Brand: AFUL Top AFUL IEMs
Price (Msrp): $800
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Softears RSV MK II Details
Driver Configuration: 5BA
Tuning Type: Neutral with Bass Boost
Brand: Softears Top Softears IEMs
Price (Msrp): $700
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Aful Cantor User Review Score
Average User Scores
Average User Score:
Based on 2 user reviews
8.5Excellent
Softears RSV MK II User Review Score
Average User Scores
Average User Score: n/a
Based on 0 user reviews
No user reviews yet. Be the first one who writes a review!
Aful Cantor Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
8.3Gaming Grade
A+Softears RSV MK II Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
7.6Gaming Grade
AAful Cantor Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A+- The tonal balance is polished and expressive, highlighting emotion without sacrificing accuracy. It keeps emotional weight without sacrificing accuracy.
Average Technical Grade
S- It resolves with authority, pairing lightning-fast transients with holographic staging. Ambient cues wrap around with ease.
Softears RSV MK II Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A+- It delivers a coherent, natural timbre that remains captivating across genres. Acoustic instruments sound lifelike and textured.
Average Technical Grade
A- Overall technical control is strong, presenting instruments with clarity and sensible staging. Textures are portrayed with satisfying clarity.
Aful Cantor User Reviews
Share your experience and build your personal ranking list.
You need to be signed in to write your own reviewWell-rounded flagship IEM with refined tuning and tech for the money.
Pros
Exceptional clarity and tonal balance that punches above its price bracket.Cons
Requires precise tip fit for best performance and subtle treble can be fatiguing at high volumes.Excellent overall clarity and imaging, though fit demands can be a deal-breaker
Pros
Tonally balanced signature with superb detail retrievalCons
Requires deep insertion and has a large shell that may challenge fit for someSoftears RSV MK II User Reviews
"This is an example review"
Pros
- Example pro 1
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Cons
- Example con 1
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