Dunu Glacier VS Thieaudio Hype 4

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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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Thieaudio Hype 4 delivers the redemption arc this series needed: a $399 hybrid that channels the beloved Clairvoyance vibe at a lower price. The 2DD+4BA setup hits with a chest-filling low end—powerful yet clean—while treble comes through with airy, flute-and-violin sheen, free of splash. Imaging feels gapless and pinpoint; handclaps and spatial cues lock into place with convincing realism. Despite “studio monitor” marketing, the tuning is smooth and musical rather than dry or clinical, inviting long sessions and even some dancing. Tip rolling (from silicone to foam-injected silicone) nudges seal and focus but doesn’t derail the signature, signaling a universally forgiving character.

At 17 Ω, the Hype 4 is easy to drive and plays nicely with everything from sterile DAC/amps to warmer class-A and even tubes—differences show as subtle nuance, not hit-or-miss synergy. Build is handsome in black/blue/white shells (the white “dragon-meat” look gets a wink), with a comfy deep-recessed 2-pin fit and decent included tips/foams. The miss: a non-modular 3.5 mm cable at this price, plus the usual accessory minimalism. Sonically, though, this feels like the $600-tier polish of the old Clairvoyance—cohesive, punchy, and silky across the band—making Hype 4 an easy recommendation. Final verdict: a confident 9/10 on sound, dinged mainly for the cable, and a clear “this is what Thieaudio should sound like” moment.

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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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Thieaudio Hype 4 arrives with surprisingly premium trimmings: a compact, comfortable shell (though some ears may need tip rolling for a secure seal), a supple cable akin to the latest Oracle 2/Monarch MKIII leads with a durable 3.5 mm plug, and a classy case lifted straight from pricier models. Overall presentation feels 2–3× its price, with tidy accessories and a cable that’s pleasant in hand even if it won’t lay perfectly flat.

Sonically it’s impactful and engaging: bass is lush and deep without smearing, mids keep vocals forward yet smooth for podcasts, and treble has air and detail without piercing. The tuning graph shows excellent channel matching and hugs a preferred target—3 kHz rise with a 5–6 kHz dip—which explains the easygoing clarity. Minor nitpicks surface: some cymbal shimmer can feel a touch “off,” and a few drum hits could carry more thump/realism; otherwise it’s a cohesive, “just sounds right” presentation that can deliver goosebump moments when the beat drops.

Against peers, Hype 4 comes off as a safer buy and more exciting listen than the Hisenior Mega5 EST (cheaper, better cable/case, and far less dull). It edges the Binary Chopin on overall quality—though Chopin stays a killer budget pick—and proves more fun and library-friendly than the detail-leaning Performer 8. Versus Monarch MKII it’s livelier with better sub-bass and treble reach; compared with Monarch MKIII, it avoids the fatiguing 4–6 kHz energy. The verdict: a mid-fi standout with near top-tier tuning, top-shelf packaging, and a value that challenges pricier options—highly recommended despite not being the absolute cheapest route to great sound.

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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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The Thieaudio Hype 4 brings a hybrid setup of 2DD + 4BA at around $400, wrapped in a distinctive all-white shell with tidy faceplate patterning and a slightly tinted cable. Shell size is medium and the ergonomics echo other modern Thieaudio designs: easy insertion, stable fit, and genuine all-day comfort. Build quality and finish feel a notch more refined than usual for the brand, making the whole package look and wear better than expected at this price.

Tonality targets a neutral with bass boost profile, with emphasis kept largely to the sub-bass so things don’t turn warm or boomy. Versus Hype 2, there’s a touch more mid-bass and, more importantly, a firmer bass attack—swapping the softer, pillowy edges for punch and control. Treble stays smooth and well-controlled without sibilance. The star, though, is the imaging and head-stage: unusually wide and clean at this price, giving precise placement and clear separation that pops immediately on first listen.

Not everything is perfect—midrange micro-contrast can feel a bit “glassy,” so ultra-fine vocal texture and analog grit aren’t its specialty. In lateral comparisons, Yanyin Canon 2 plays warmer and fuller with slightly better textural nuance, while Hype 4 sounds cleaner, airier, and more expansive for live and electronic material. With meaningful improvements over Hype 2 (especially in bass behavior) and standout staging, Hype 4 earns a confident 4/5 as a polished, engaging all-rounder.

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HYPE 4 comes across as the sweet spot of the series: less bass than the HYPE 10, but tighter control with a midrange that feels more natural and unmasked. Listeners called it smoother and more versatile, with punch that doesn’t bleed into the mids and more apparent detail than the HYPE 2 and 10. Several blind testers either preferred it outright or put it neck-and-neck with higher-priced sets, estimating it around “$500” based on sound, while the actual tag sits near $400.

Against the rest, the HYPE 10 drew comments like “boomy,” “less cohesive,” and occasionally underwhelming, while the HYPE 2 read as Harman’s “cooler brother” with fuller male vocals but lower technical ceiling. The Monarch MK3 still edges the field on overall cleanliness, “air,” and refinement, and some would pay the extra $100 to jump there. But viewed through price-performance, the takeaway stayed consistent: HYPE 4 is the most worth it pick for most people, delivering a balanced, engaging presentation without the bloat or brightness trade-offs seen elsewhere in the lineup.

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The DUNU Glacier presents itself as a true $1,400 flagship, pairing a nine driver hybrid array with 904L stainless steel shells that feel like a piece of jewelry in the hand and in the ear. Comfort and isolation are outstanding, with a surprisingly secure fit from the compact shells, scoring essentially ten out of ten for long listening sessions and around 9.5 out of ten for blocking outside noise. The stock cable, modular Q Lock system and generous selection of tips and accessories add to the feeling that this is a carefully engineered high end system rather than just another in ear.

Sonically, Glacier goes for a neutral signature with a strong sub-bass focus, where the dynamic driver digs very deep with powerful rumble and thunderous mid bass that stays tight, punchy and snappy instead of bloated. Male vocals sit on a solid bass foundation without bleeding into the mids, giving voices a natural, weighty character, while forward mids deliver that HD650 and HD600 style intimacy with excellent note definition and organic timbre. Female vocals float on top with an airy, extended treble that stays completely free of sharpness or sibilance, creating an almost ethereal sense of air while still sounding smooth and natural.

Technical performance is where Glacier really earns its flagship status, with imaging that is extremely precise and multi layered, allowing individual voices and instruments in dense mixes to be followed easily as they move across the stage. The soundstage has an unusually large sense of space for an IEM, evoking the way high end open back headphones place instruments in a real acoustic environment, with clear separation between near and far sounds and very realistic reverberation around guitars, drums and vocals. Combine this with highly textured, detailed bass, lively yet controlled dynamics and a natural, organic presentation that reveals new details in familiar tracks, and Glacier comes across as a true treasure level in ear that can justify its high price for listeners seeking a long term reference.

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Thieaudio HYPE 4 hits far above its price with a lively, bass-driven tuning that stays clean and controlled. The low end delivers physicality without muddying the mids or presence region, evoking a “mini Monarch MK3” vibe for music playback. Resolution and micro-detail—fingers on strings, vocal intimacy—come through impressively, though note that pairing (e.g., a Topping DX9) can influence bass texture and perceived air.

In competitive titles, HYPE 4 reduces ambient haze so audio cues cut through like they’re “piercing a fog,” elevating depth perception and imaging. It takes the edge in Apex Legends, The Finals, and Counter-Strike 2, where some effects can sound metallic on other sets; here, separation remains intact even amid explosions and ultimates. Despite the energetic low end, separation stays steady and never overwhelms complex scenes.

Versus the Yanyin Canon 2, HYPE 4 is the more fun and slightly more resolving listen; Canon 2 can be preferable on tight, bass-heavy maps in Valorant and Fortnite, with Rainbow Six Siege essentially a toss-up. Comfort is close, with a slight fit edge to HYPE 4 over longer sessions. Overall gaming grade sits around a B+ (≈88 ±2) on the “wallhack certified” list—an excellent hybrid that bridges music enjoyment and competitive clarity at its price.