64 Audio Volur VS Starry Audio Yozora

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The 64 Audio Volür shows up as a $2,500 showpiece: a 10-driver monster with dual dynamic woofers and a pile of balanced armatures, wrapped in a shell that actually looks as expensive as the sticker suggests. Build feels solid and the faceplates are properly flashy, but the stock cable gets called out as nowhere near worthy of the price tag, so an aftermarket wire like the purple PW Audio one on hand feels more fitting. The kit is pure luxury excess: leather case, tip “spider brain” organizer, foams and silicones in every size, and a set of tuning plugs that turn the nozzle end into a tiny science project.

Those tuning plugs are not a gimmick; they meaningfully swing the tonality, especially in bass and treble. Black filters come off as “B for boring,” gold brings extra energy up top that can get too spicy, while gunmetal and silver do the real work, with silver acting as the “bass king” and gunmetal giving a more balanced but still meaty presentation. Once settled on the right tips and plugs, Volür becomes a hyper-revealing, crazy-sensitive in-ear that throws every element of a track into its own little bubble, lining them up on a mental shelf with pinpoint separation, U12t-style microdetail, and surprisingly hard-hitting dynamics that make kick drums and stomps feel almost uncomfortably real.

Despite that level of resolution, Volür doesn’t punish bad recordings as brutally as some ultra-revealing sets; even rough Foo Fighters masters stay enjoyable, just carefully dissected and displayed instead of mashed into a blob. It’s very easy to drive, brutal on noisy chains, but otherwise fairly amp-agnostic: give it a clean source and it simply does its thing, turning almost any track into a forensic listen. From a value perspective, the price is still called stomach-churning—especially after the MSRP hike—but as far as high-end IEMs go, this one absolutely behaves like a “big boy” piece: four tunings in one box, serious bass authority, and a level of detail and separation that sets a benchmark for what expensive in-ears are expected to do.

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64 Audio’s Volür is described as a holographic, highly resolving IEM with unusually high bass quantity that still preserves separation, layering, and air between notes. In games, positional cues feel 3D with immaculate depth and verticality; footsteps are prominent without smearing the mix, and vocals remain transparent with accurate timbre. The upper range presents as clean and non-sibilant, though certain upper-mid effects (e.g., shield cells/light taps) could use a touch more presence. For music, the stage is wider with singers a bit farther out, and micro-details—breaths, mic proximity, subtle slurs—emerge easily, delivering a fun yet technical listen.

Hardware choices matter: the preferred module is the gray (then silver, gold, and lastly black, which can feel fatiguing). Tip rolling significantly alters the presentation; foam tips shift it the most, while alternatives like Snailfit/SpinFit change stage depth and comfort. The driver pack—dual dynamic drivers in a true isobaric low end, six BAs for mids, an extra BA up top, plus 64 Audio’s TIA—underpins the speed, texture, and punch that remain controlled even at elevated bass levels. The main gripe is the included 3.5 mm cable on a flagship at this price; a balanced 4.4 mm option in the box would better fit expectations.

Overall, Volür is framed as an S-tier “unicorn” for gaming and a top-shelf choice for music if a bass-boosted but impeccably separated signature is the goal. It’s expensive, but for those in this bracket, the combination of impact, imaging, and resolution makes it a compelling daily driver—powerfully engaging while staying precise across the range.

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64 Audio’s Volür brings a bold, U-shaped tuning powered by a 10-driver array (8 BA + 2 DD in an isobaric setup) at a premium $2,500 price. The headline is the bass: a meaty, wallopy low end with unusually tight, textured attack that hits hard yet stays controlled, preserving clarity through the mids. Upper mids sit a touch relaxed, while an upper-treble zing adds bite, separation, and a roomy stage. 64 Audio’s APEX modules (M10/M12/M15/M20) primarily shift bass quantity; counterintuitively, the set shines most with the M20, where elevated bass balances the treble sparkle.

Build and ergonomics mirror recent 64 Audio releases: medium-sized shells with a slightly long nozzle (comfortable overall but fit stability can be just okay), plus a decent if slightly kinky stock cable. Technically, imaging, separation, and stage feel contrast-rich and more convincing than many peers. Tone preferences will matter: reduce the bass with lighter modules and the treble can dominate; leave the bass up and the presentation becomes satisfyingly muscular without smearing. As a proposition, Volür suits bass enthusiasts who want quantity and quality in tandem, earning a solid 4/5 for delivering big low-end thrills with high-end technical finesse.

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64 Audio Volür comes across as a tour-de-force of bass tech: dual true isobaric dynamic drivers deliver deep, textured rumble with a “speaker-in-the-room” feel, while the Tia BA adds pronounced upper-treble energy. Ergonomics are excellent—compact metal shells, smooth nozzles that take tips well, and a best-in-class top two-pin connection that makes cable swaps effortless. Build feels built-to-last and the purple faceplate looks classy, though a more varied aesthetic across 64 Audio’s lineup would be welcome.

The APEX modules change flavor more than fundamentals: M20 adds a touch more bass, M15 strikes the best balance, M12 runs leaner, and MX is very flat and generally skippable; running it empty is a hard no. On music, Volür shines with EDM/modern productions, projecting holographic low-end and vivid dynamics; in dense mixes with strong instrumentals and vocals, the midrange can feel overrun and less engaging. Versus peers: U4s tracks similarly in bass level (with different modules), Elysian Annihilator brings stronger 3 kHz vocal presence while Volür counters with superior bass texture, and Monarch MKIII sounds more overtly U-shaped with greater mid/upper energy.

As a package, this is a fantastic IEM—arguably a favorite from 64 Audio—yet not flawless. The price is steep, the APEX ecosystem feels like paid tuning switches, and there’s some treble peaking plus occasional vocal thinness; a simpler, cheaper, M12-style fixed tuning would be a dream. For listeners prioritizing hip-hop, rap, and modern genres, Volür can absolutely be endgame; for vocal-centric or classical libraries, it’s impressive but not definitive. Overall verdict: a five-star recommendation for those who can afford it, anchored by class-leading bass and exceptional build, with clear trade-offs noted.

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Star Audio Yozora arrives with a sparkling blue faceplate, numbered shell and a light flexible cable that together already give a very premium impression. Out of the box the tonality is clearly bass focused, yet the overall presentation stays remarkably smooth and coherent rather than bloated or boomy. Even with imperfect mixes the Yozora maintains a calm, atmospheric character that feels worth every penny for listeners who enjoy a lush high end monitor.

The low end is the star with a roughly 10 dB sub bass shelf that delivers deep rumble, strong atmosphere and a sense of weight that can give goosebumps, yet mid bass decay is quick enough to avoid warming or muddying the midrange. Vocals sit slightly forward and intimate but stay clean and neutral in tone, with excellent detail retrieval that reveals texture and grit without sounding shouty. Instruments in the mids feel rounded, elastic and lively, with an abundance of micro detail blooming around the listener so that even dense rock and metal tracks remain well separated.

Upper mids and treble are tuned to be bright yet balanced, using a smooth rise to around 4 kHz and careful control of sibilance so highs stay crisp, airy and extended without harshness. The Yozora projects a shockingly wide soundstage with clear layering and precise imaging, easily outclassing more affordable 2DD 6BA sets in separation and spatial organization. The only real drawback is that the shell runs on the large side, which can cause some fatigue after long morning sessions, but for listeners seeking insane bass, dreamy space and a very refined flagship level tuning, this is a truly exceptional bass oriented IEM.