Dunu Glacier VS Dunu Mirai

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The Dunu Glacier delivers an extraordinary premium experience right from the unboxing, featuring a lavish presentation, a massive high-quality fabric cable with interchangeable terminations, and hand-polished stainless steel earpieces that feel substantial and expensive. Despite the controversial MMCX connectors, the cable and fit are praised, complemented by a ton of accessories including multiple ear tip types, a leather case, and even a brush. This is Dunu’s flagship effort at $1300, and the physical presentation screams luxury.

Sonically, the Glacier is a revelation with a massive, immersive soundstage that places instruments at a distance, creating a surround-like experience rather than an in-your-head assault. The tuning is remarkably relaxed and natural, prioritizing smoothness and spatial depth over aggression. Tracks with atmospheric elements or live recordings become breathtaking, revealing layers of echo and venue acoustics that feel expansive and holographic. This isn’t hyper-detailed or clinical; it’s chill, luxurious, and emotionally resonant, making even familiar music feel newly captivating.

Compared to competitors like the Thieaudio Prestige Limited or Monarch MkIII, the Glacier carves its own niche with its unparalleled sense of space and effortless presentation. It doesn’t compete on technical aggression but instead offers a transportive, almost spiritual listening experience. If you crave an endgame IEM that emphasizes grandeur, natural tonality, and pure musical immersion over analytical prowess, the Glacier is a jaw-dropping contender. Just be prepared for its unique, room-filling signature—it’s less an in-ear monitor and more a portal.

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Dunu Mirai comes as a headphones.com exclusive seven-driver hybrid—1DD + multiple BA with a super tweeter—priced around $950–$1,000. The tuning sits a few clicks toward the analytical side without abandoning fun: crisp, clean, and ruthlessly revealing of recordings and chain noise. Expect intimate staging, surgical separation, and a bass response that’s tight rather than head-rattling (forget any “+11 dB” slam claims in practice). Feed it a noisy amp or a bad master and it will tell on you; give it quality and it layers beautifully.

Build is a mixed bag: the green shells are chunky and a bit plain for the price, but ergonomics and nozzles work well. The included DUNU modular cable is light, comfy, and well-executed, and—bless—this one uses 2-pin. Accessory spread is generous (SS tips, “candy” tips, case, adapters). Still, aesthetics won’t scream “kilobuck,” which may irk some.

Tuning is the story: this is a precision instrument that doesn’t sugarcoat, closer to a studio mindset than a party trick. Tip rolling (e.g., foam-silicone hybrids) can nudge low-end weight and bring the midrange forward for a more emotive hit without breaking its composure. It stands apart from DUNU’s Glacier—the two make a complementary pair: Glacier for relaxed, expansive chills; Mirai for focused detail and truth-telling. Verdict: a full pass for listeners who want refinement and honesty over gloss, and who can curate their library and source to match.

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Priced around $1,350, the Dunu Glacier is a premium nine-driver tribrid IEM featuring one dynamic driver, four balanced armatures, and four electrostatic drivers. The build quality is exceptional with a beautiful mirrored polished steel shell, though it's noted as a bit large, heavy, and a fingerprint magnet. Comfort is generally good, and it includes a high-quality, pliable cable with interchangeable connectors and a secure chin slider. Packaging is also highlighted as exceedingly well done, typical of Dunu's recent standards.

Sonically, the Glacier delivers a very bassy, extremely fun, and highly engaging V-shaped signature. The strong bass is balanced by prominent upper mids, offering good detail resolution and micro-details. However, a noticeable energy peak around 3kHz can make some tracks feel overly energetic, intimate, or even slightly shouty, limiting its versatility for mellower listening sessions. Comparisons place it near sets like the LETSHUOER Tera (less bass, cleaner) and ThieAudio Monarch MK I (less bass, more even upper mids), while noting it surpasses the Dunu Brain Dance (DK-31) in detail and bombast, though the Brain Dance offers significant value at half the price.

Ultimately, the Dunu Glacier stands out as a fantastic and unique IEM with satisfying bass weight, good imaging, and excellent micro-details. Its fun, bombastic character and high-quality build make it a compelling choice, but the specific upper-mid energy requires careful consideration. It earns a recommendation for those seeking an ultra-engaging Harman-style listen with top-tier driver tech, though demoing is advised due to its distinct tonal quirks.

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Build quality and presentation are the Mirai’s calling cards: a premium cable, a robust case, and those quirky little IEM booties make for an unboxing experience that feels luxury at its price. Sonically, it sketches a spacious, almost holographic stage where higher voices shine, drums hit with conviction, and guitars sound convincingly natural. The trouble starts lower down: bass and alto vocals can feel thin, with a mid-bass dip that leaves some tracks lacking body; strings on certain orchestral pieces skew sharp or plasticky, and there’s an ~8 kHz glare that can bite. Metal and electronic are a treat; well-recorded R&B is a poor match.

EQ—whether to Precog’s target or a similar in-house curve—fills in mid-bass and steadies the balance, but it raises the question of whether a pricey set should require tweaks. In context, Supernova offers flatter treble and fuller mids, Monarch MKIII brings livelier dynamics and a safer overall tone, and the Binary Chopin delivers a more consistently “fun” V-shape with fewer problem tracks. Mirai ultimately suits big-spending listeners who value build and staging panache over benchmark value; mid-tier collectors may find stronger all-rounders elsewhere. Verdict: a solid 4-star recommendation with a pure audio score of 8.9—impressive on the ears, if not the outright class leader for the money.

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The Dunu Glacier stands as the brand's latest flagship tribrid IEM, priced around $1,350. Its standout feature is its adherence to the Harman target curve, a rarity at this level, executed with notable success. The Glacier boasts exceptional build quality, featuring polished 904L stainless steel shells that feel substantial and genuinely premium, justifying its price tag aesthetically. It comes loaded with accessories, including a plethora of ear tips (like the Candy and new clear Dunu Lunnies) and a large carry case, though the case design is noted as slightly awkward. The included cable is thick, well-made, and features Dunu's signature swappable terminations (3.5mm and 4.4mm included), though its ear hooks are somewhat loose and the chin cinch doesn't hold perfectly.

Sonically, the Glacier delivers a contrasty, V-shaped signature true to Harman but avoids the thinness sometimes associated with that target, thanks to extra bass emphasis. The bass is a major highlight – big, impactful, deep, well-textured, and satisfyingly clean with zero bleed into the mids. The treble is forward yet remarkably smooth, avoiding sharpness or sibilance. While technically proficient with good imaging and a strong sense of depth (especially from the bass), it leans slightly more towards contrast than nuanced micro-detail, particularly in the mid-range. Compared to rivals like the 64 Audio U4s (more mid-focused, warmer, laid-back) and the Dunu Mirai (brighter, most mid-focused, wider stage but less satisfying bass and slightly digital/scratchier treble), the Glacier excels in bass impact and separation, smoothness, and depth perception, while the others might appeal more for pure mid-range focus.

Overall, the Dunu Glacier is a highly refined IEM with no glaring weaknesses. Its excellent build, satisfying Harman-tuned sound (especially the standout bass and smooth treble), and competitive technicalities make it a compelling option in the flagship tier. While its weight and aggressive shell molding might cause minor comfort issues when lying down, and the ear hooks could be tighter, it earns a very solid four-star rating for delivering a premium experience that largely justifies its cost and successfully champions the Harman target.

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Dunu x Precogvision Mirai arrives after years of iteration, priced at $1,100 with a hybrid array—1DD + 6BA and an unusual open-back tweeter. The earpieces wear a handsome green finish and ship (retail) with a matching white cable and swappable terminations. Fit can be contentious: a more generic shell and a long nozzle may require tip rolling; shorter, spin-fit-style tips helped achieve seal and comfort without pushing the nozzle too deep.

Tonally, Mirai blends a leaner lower-midrange and sub-bass emphasis (think Helios-style low end) with a relaxed upper-mid à la 64 Audio. The result avoids sounding thin, delivering taut, weighty bass, excellent imaging, and incisive instrument separation with convincing front-to-back depth. The weak spot is treble timbre: cymbals and highs can skew a touch digital/crunchy, and while tips can tame it somewhat, the top end isn’t perfectly natural.

Versus 64 Audio U4s, Mirai is the sharper, tighter listen with stronger imaging, while U4s plays warmer, smoother, denser but a bit blurred by comparison. Against ThieAudio Monarch MkII, Mirai offers fuller bass and body, whereas Monarch is brighter, more forward with a notably smoother treble and slightly higher apparent resolution—but can feel thinner and has its own fit quirks. Overall, Mirai earns a solid 4/5: a distinctive, future-leaning tuning that trades blows at its price, with caveats on fit and treble polish.

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Treble-forward without being a razor blade—that’s the Dunu Mirai’s vibe. Sparkly highs with notable peaks around 4 kHz, 8 kHz, and past 10 kHz inject energy, immediacy, and sharper imaging than smoother sets like Supernova. Vocals are clean, airy, and extended with no lower-mid bleed, giving indie/alternative tracks a lively “facelift,” though the same brightness can turn fatiguing on already hot mixes (EDM, J-/K-pop) and encourages lower listening volumes on those genres.

Bass is rumbly and punchy in the sub-bass but light on mid-bass weight, so rock benefits more from sets like Zen Top or SA6 Mk II. Technicals are strong—resolution, layering, and imaging keep pace with pricier peers; versus Monarch MK3 and LTD, Mirai sounds brightest and most exciting, while MK3 has better bass texture/more natural vocals and LTD offers airier staging with smoother treble. Compared to Harmon/diffuse-field staples (Top, Studio 4, E7M), Mirai pulls a touch more detail but is brighter. It’s essentially a more technical, bass-enhanced take on Blessing 3 / Simgot EA1000—yet at $1,100, the value debate is real, especially with unit variance and a somewhat plasticky backside (nice cable/case, though). Best for listeners seeking a lively, detail-first upgrade to EA1000/Blessing 3; not a treble-head special, not a do-everything allrounder.