Dunu SA6 Ultra - Reviews & Ratings

9 Reviews (A Tier | 7.3/10)

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Summary

Based on 9 reviews, the Dunu SA6 Ultra is earning strong approval from most reviewers, who appreciate its engaging character.

Average Reviewer Scores

Precogvision Nymz Super* Review
Shuwa-T Audionotions Jays Audio Tim Tuned
Gizaudio Axel Head-Fi.org

Average Reviewer Score:

7.3

Generally Favorable

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Gaming Score & Grade

  • The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.

Gaming Score

6.9

Gaming Grade

B+

Dunu SA6 Ultra Details

Driver Configuration: 6BA

Tuning Type: Neutral, Warm

Top Neutral IEMs Top Warm IEMs

Brand: DUNU Top DUNU IEMs

Price (Msrp): $550

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Reviews

Reviewed by: Gizaudio Axel

Gizaudio Axel 8 Reviewer Score
A+ Tuning
A+ Tech
Tuning style is a matter of preference. QDC Anole VX tuning, excellent resolution, and great bass with a practical bass switch. Unvented design.

Gizaudio Axel original ranking

Gizaudio Axel Youtube Channel

Reviewed by: Shuwa-T

Shuwa-T 7.6 Reviewer Score
A- Tuning
A Tech
More controlled tuning compared to the VX, while maintaining the excellent technicalities Clarity and staging takes a hit; it is simply not on the same level

Shuwa-T original ranking

Shuwa-T Website

Bass: A- Mids: A Treble: A Soundstage: A Details: A+ Imaging: A+

Reviewed by: Audionotions

Audionotions 7.5 Reviewer Score
SA6 but better - and SA6 was already a very good IEM to begin with. Retains the same smooth and relaxed tuning and great resolution. What sets this apart is the right amount of treble extension to make these even more detailed, sparkly, and airy. These punch well above their weight! Most people should endgame here unless you need the extra 5% improvement that $1k+ more will give.

Audionotions original ranking

Website (Audionotions)

Reviewed by: Jays Audio

Jays Audio 7.5 Reviewer Score
A+ Tuning
A+ Tech
YouTube video thumbnail
An SA6 with improvement in treble extension, and stage air; better tuned Oracle2 with wider stage. Relaxing tonality but also very resolving. Airy stage with great depth and height. Smooth dynamics and great coherency. Realistic timbre. Great detail and clarity. Mids and vocals may not be forward enough for some genres. Low-end is quick and has great separation form mids but lacks rumble and slam. Tuning A+ to S- depending on your library.
Youtube Video Summary

Dunu SA6 Ultra pushes into flagship-adjacent territory with crisp detail, airy resolution, and an expansive stage that has real depth, height, and width. Separation is clean and the imaging snaps into place from distinct directions, sounding natural rather than sharpened or etched. The treble extends smoothly—no plasticky glare—and stays tastefully present without thinning things out. Timbre is impressively natural for an all-BA set, dynamics are even, and the midrange rides a neutral-relaxed line: vocals and instruments sit centered, neither pushed nor recessed, letting the listener pick out layers at will.

Against heavy hitters, technicals sit just a notch under the absolute best—u12t still wins for microdynamics/layering and Z1R for bass/treble fireworks—but those sets cost 2–3× more, so the Ultra’s value is undeniable. Bass is the caveat: mid-bass is clean and quick yet doesn’t punch like a dynamic driver, and sub-bass runs on the lighter side; the bass switch nudges quantity but not texture or slam. That tuning means hip-hop and low-end-centric libraries may feel underserved, and while vocals are clear and airy, they’re more neutral in placement than intimate, lacking a touch of weight and power compared with forward, vocal-centric sets.

Where it shines is with rock, jazz, classical, and electronic, where stage, separation, and speed can flex. Taken together, this is an A+ for technical performance and an A to A+ for tuning depending on library—“endgame for less” isn’t hyperbole for the right listener. Outside of wishing it weren’t a limited run, there’s little to nitpick: Dunu and Zeos cooked up a genuinely special all-BA that trades chest-thump for sophistication and coherence.

Jays Audio original ranking

Jays Audio Youtube Channel

Reviewed by: Tim Tuned

Tim Tuned 7.5 Reviewer Score
A Tuning
A+ Tech
YouTube video thumbnail
Anole VX-ish tuning with less treble and details Could use a little more upper mids
Youtube Video Summary

Dunu SA6 Ultra pushes a proven formula into true S-tier territory. Building on the well-tuned, mid-forward original SA6, the Ultra fixes the big weakness: the air region. Treble extension is lifted in the 6–10 kHz band, unlocking a wider head-stage, clearer micro-details, and that “holographic” placement fans rave about. The midrange is flattened and even—no shout, no dip—so vocals and instruments sit naturally with excellent transparency. Bass quantity stays similar (a hair leaner), keeping the presentation clean rather than boomy.

This tuning echoes far pricier sets like Campfire Andromeda 2020, qdc Anole VX, Unique Melody MEST Mk1, and Oriolus Gemini: airy top, expansive stage, and crisp micro-definition, but without the fatiguing sharpness those can flirt with. On a “detail scale,” SA6 Ultra slots between the 7Hz Timeless and the Anole VX—a substantial jump in resolution versus the original SA6, which trails behind Timeless. Treble is smooth yet extended, mids are ultra-clean, and the overall balance feels analytical in insight while still musical in delivery.

Trade-offs are straightforward: this isn’t a basshead IEM. The optional bass-boost switch adds some weight, but doesn’t transform it into a slam monster. For listeners prioritizing staging, midrange clarity, and airy treble at a sane price, SA6 Ultra is a complete upgrade over the original—so complete that there’s little reason to pick the older model if this limited 300-unit run is available. In short: a realistic endgame for “cheap.”

Bass: A+ Mids: S Treble: A+

Tim Tuned original ranking

Tim Tuned Youtube Channel

Reviewed by: Precogvision

Precogvision 6.7 Reviewer Score
A- Tuning
B Tech
A slightly refined SA6 with better treble extension. Very coherent.

Precogvision original ranking

Precogvision Youtube Channel
Bass: B Mids: A+ Treble: A- Dynamics: B Details: B Imaging: B

Reviewed by: Nymz

Nymz 6.7 Reviewer Score
A- Tuning
B Tech
Limited run. A baby VX by a fraction of the price with less detail. Tastefully done tuning with incredible stage depth. BA bass and timbre are present, but you won't even mind given how good it sounds. SA6 Mk2 exists now.

Nymz original ranking

Nymz Website

Bass: B Mids: A+ Treble: A- Details: B Imaging: B

Reviewed by: Super* Review

Super* Review 6* * score rescaled + normalized
check links for more info:

Super* Review original ranking

Super* Review Youtube Channel

Reviewed by: Head-Fi.org

Head-Fi.org 8 * score rescaled + normalized
4 community members have rated the DUNU SA6 Ultra at an average of 4.3/5 on Head-Fi. Overall sentiment: Excellent.

URL to full Review

Head-Fi.org original ranking

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Compare Dunu SA6 Ultra to popular alternatives

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Average Technical & Tuning Grades

Average Tunign Grade

A
  • A smooth, agreeable balance keeps the presentation engaging without obvious flaws. Only sensitive ears will nitpick the bumps.

Average Technical Grade

A-
  • It manages detail and layering well enough, even if the stage feels only moderately sized. You get a clear sense of left and right, if not depth.
Bass B+
Bass foundation is good, adding satisfying punch without losing control. Pop and rock tracks feel lively.
Mids A+
The midrange sounds refined and revealing, balancing clarity with emotional weight. Timbre accuracy rivals studio monitors.
Treble A-
The treble is exquisitely tuned, combining crystal detail with relaxed delivery. Micro-details emerge effortlessly.
Dynamics B
Expect energetic dynamics that bring music to life without harshness. It injects enthusiasm into fast music.
Soundstage A
All dimensions bloom together, producing an expansive venue that feels carefully rendered. You can map the ensemble easily.
Details B+
Recordings feel well sorted, with supporting details snapping to attention. Small articulations remain intact.
Imaging B+
Positions lock in with confidence, sketching a believable stage map. There's a tangible sense of stage geometry.
Gaming B+
Respectable environmental presentation favors atmosphere over precision. Detects obvious directional cues while conveying game world ambiance. Bad value-to-cost for gaming purpose - not recommended

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