Softears RSV MK II VS DUNU x KOTO ITO
IEM Comparison: Expert & Community Scores Side-by-Side
Softears RSV MK II and DUNU x KOTO ITO use 5BA and 2DD+2BA driver setups respectively. Softears RSV MK II costs $700 while DUNU x KOTO ITO costs $199. Softears RSV MK II is $501 more expensive. Softears RSV MK II holds a decisive 1-point edge in reviewer scores (8.3 vs 7.3). Softears RSV MK II has significantly better mids with a 2.2-point edge, Softears RSV MK II has significantly better treble with a 1.8-point edge, Softears RSV MK II has better dynamics with a 0.5-point edge, Softears RSV MK II has better soundstage with a 0.5-point edge, Softears RSV MK II has better details with a 0.7-point edge and Softears RSV MK II has better imaging with a 0.6-point edge.
Insights
| Metric | Softears RSV MK II | DUNU x KOTO ITO |
|---|---|---|
| Bass | 8.1 | 8.1 |
| Mids | 8.3 | 6.1 |
| Treble | 7.9 | 6.2 |
| Details | 7.9 | 7.2 |
| Soundstage | 7.7 | 7.3 |
| Imaging | 8 | 7.4 |
| Dynamics | 8.3 | 7.8 |
| Tonality | 8.6 | 7.1 |
| Technicalities | 8 | 6.2 |
Softears RSV MK II Aggregated Review Score
Average Reviewer Scores
DUNU x KOTO ITO Aggregated Review Score
Average Reviewer Scores
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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DUNU x KOTO ITO Details
Driver Configuration: 2DD+2BA
Tuning Type: Strong V
Brand: DUNU Top DUNU IEMs
Price (Msrp): $199
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Softears RSV MK II User Review Score
Average User Scores
Average User Score: n/a
Based on 0 user reviews
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DUNU x KOTO ITO User Review Score
Average User Scores
Average User Score: n/a
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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
ADUNU x KOTO ITO Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6.4Gaming Grade
BSoftears RSV MK II Scorings
Average Technical & Tuning Grades
Average Tunign Grade
S-- Highly polished technical execution. Excellent frequency synergy creates an immersive experience. Enhances musical content.
Average Technical Grade
A+- Good technical performance. Clear separation and decent detail retrieval across various tracks. Soundstage shows reasonable width and depth.
DUNU x KOTO ITO Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A-- Pleasing tonal balance with good technical control. Minor quirks present but not distracting. Demonstrates decent genre versatility.
Average Technical Grade
B- Satisfactory technical performance. Handles basic detail retrieval adequately in most tracks. Maintains reasonable cohesion in simpler arrangements.
Softears RSV MK II Reviews
Jaytiss
2025-09-03
9.2
Reviewer Score
So Softears didn't forget how to tune. Tactful Basshead Jaytiss Youtube Channel
Super* Review
2025-09-09
8*
* score normalized
A 5-BA successor that lands at $700, claims “re-engineered” BA bass, and feels like a welcome throwback to when high-end Chi-Fi wasn’t four figures. Build and fit are excellent with a rock-solid seal; the thick cable behaves well but annoyingly ships 4.4-only with a 3.5 mm pigtail. Tonally it’s essentially neutral up top with a big low-end shelf—treble is clean and non-fatiguing, imaging competent, and the bass is unusually physical for all-BA, though it can be inconsistent (and a bit tubby on bass-heavy mixes) versus a good DD. Net: a supremely competent, do-everything all-rounder that trades “wow” factor for balance—I prefer it over Dunu SA6 Mk II, see Symphonym Meteor and Moondrop S8 as taste-based alternatives, and I land at a solid 4/5.Super* Review original ranking
Super* Review Youtube Channel
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.
Jays Audio
2025-08-28
8
Reviewer Score
Bassy dynamic all-rounder with great low-end texture that slams hard with good note-weight/body. Slight Hype 4 upgrade. Treble is smooth, and vocals are well-tuned. Overall unboxing/accesories are great... just no ESTs at its price, I'd wait for sale. Jays Audio Youtube Channel
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.
IEMRanking AI
2025-08-28
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.
DUNU x KOTO ITO Reviews
Jaytiss
2025-09-11
7.4
Reviewer Score
It's a fun tuning that I think people will like. Jaytiss Youtube Channel
Build & accessories land in a solid spot for the price: comfortable shells with secure nozzles, clear L/R marks, and a supple modular cable that swaps between 4.4mm and 3.5mm (no USB-C in-box). The hard case is nicely made and pocketable, and the whole package feels durable if not premium. Nothing glaring in QC—just a clean, practical presentation.
Sonically, this is a bold V-shape—huge sub-bass punch with elevated upper mids to keep things lively. The bass can turn boomy/pillowy on some tracks, and a scoop around 300–800 Hz can leave female vocals a touch recessed; treble is clean and controlled, a little dark up top with limited sparkle. Technicalities are decent rather than class-leading—separation and air trail sets like Punch Audio Martillo or Crescent, while tuning kinships show up against DUNU Glacier and even Grand Maestro-style balances. Compared to value darlings (e.g., Truth Ear Pure, Jazzer Defiant), ITO feels more audiophile-flavored fun than an all-rounder.
In DUNU’s lineup it reads as a unique basshead option: very engaging slam, thick note weight, and non-fatiguing treble, but only average mids/technicalities. Think hip-hop/EDM-friendly impact over neutral precision. Verdict: around 3–3.5 stars—competitive at $200 for those chasing thump and excitement; listeners wanting neutrality, vocal presence, or extra air may prefer other picks or a “tactful V” with less bass and less upper-mid bite.
Z-Reviews
2025-09-07
6.8
* score normalized
Dunu’s collab with Japanese creator Kaji Kaji lands as the ITO, tuned nothing like the stereotype of “treble ’til you die.” The presentation leans smooth, warm, and open, with a notably wide soundstage that flatters jazz and intimate acoustic sets—think late-night, bourbon-and-smoky-room mood without the glare. It’s built for relaxed musicality rather than forensic detail extraction.
Low end carries a thick, satisfying sub-bass that stays tasteful—present when the track calls for it, not a constant spotlight. The ITO plays “fun first”: big space, plush tone, and enough detail to keep things engaging, landing beside a “T Pro”-type set but with the clinical edges dialed back to emphasize bass and stage. In short, a “perfect fun IEM” vibe that prefers groove and atmosphere over microscope listening.
Ergonomically the shells are a bit thick, but build and accessories impress: a quality Dunu cable with interchangeable plugs, a case, and a spread of tips (including Dunu SS). The hybrid 2DD+2BA setup (ultra-low DD + low/mid DD, mid BA, ultra-high BA) at around 37 Ω runs well from modest sources and scales nicely; pricing circles the $200 mark, making it an easy recommendation for listeners who want warm, expansive, and genuinely musical tuning without chasing every last micro-detail.
IEMRanking AI
2025-09-07
7.6
Reviewer Score
DUNU x KOTO ITO is a $199.99 hybrid IEM built with Japanese reviewer Kaji Kaji (“Koto”). It uses a 2DD+2BA array (10 mm bio-diaphragm DD + 8 mm LCP DD, plus two treble BAs), comes with DUNU’s Q-Lock quick-swap plugs, and lists 105 dB sensitivity at 37 Ω with shells at ~6.5 g each.
Tonally, ITO aims for a U-shaped, bass-tilted balance: sub/mid-bass punch is elevated, mids sit slightly back but avoid haze, and treble is smooth with workable extension rather than bite. Early community impressions frame it as energetic and a touch V-leaning versus DUNU’s more neutral sets, which tracks with the collab’s “full-bodied” intent.
Technicalities are competent for the class: dynamics and imaging keep up with busy mixes, while soundstage and microdetail are closer to average among sub-$200 hybrids; driveability is friendly given 105 dB/37 Ω. As a package—tuning, accessories, and fit—it offers good value for listeners wanting engaging bass without sharp treble, though those chasing expansive stage or strict neutrality may prefer other options.
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