64 Audio Nio VS AFUL Dawn-X

The 64 Audio Nio enters as the most affordable set in this lineup at $1,700, a hybrid with 1DD + 8BA and swappable apex modules. Its core tonality is warm and a touch laid-back, with the M15 module pushing bass toward “too much of a good thing”—thick, soupy, and less resolving. Swapping to the M10 cleans things up: bass settles closer to neutral, top-end clarity improves, and the presentation feels more balanced overall. Detail is respectable rather than showy, and while the Nio can be bassy, it doesn’t deliver the most controlled low end when boosted. The standout trait here is timbre—the most natural-sounding of the group, especially with M10 installed.

Used as a daily driver, Nio with M10 suits listeners who want a smooth, natural tonality without treble bite; with M15, it veers into warm-thick territory at the cost of separation and perceived detail. Against 64 Audio’s own stable, it doesn’t reach the U12t’s BA bass quality or the Trio’s stage depth, but it offers an easygoing, organic listen that some will prefer on timbre alone. Verdict: 4/5 with the M10 module; drop to 3/5 on the M15 due to excessive bass and haze.

Super* Review original ranking

AFUL’s house sound shows up here in its most polished form: Dawn-X is a tribrid (1DD + 8BA + 4EST + bone conduction) flagship at $1,300 that prioritizes consistent fit and execution over flash. Build is understated with stabilized-wood faceplates, above-average isolation, and a medium/medium-large shell that fits better—and more consistently—than the Cantor. The accessory loadout is solid (four silicone tip sets, large but well-made case), though the stock cable does not have swappable terminations (choose 3.5 mm or 4.4 mm).

Tonally, it’s a balanced, warmer-leaning take on AFUL’s signature: a dense, controlled bass that borders on decadent yet stays quick and clean, slightly relaxed mids, and a precise, mildly forward lower-treble that keeps definition high without tipping into harshness for most listeners. Stage favors front-to-back depth over width; transients are clean and a touch clinical, giving strong separation without sounding smeary. The result is a mature, confident presentation that reads refined rather than showy.

Against peers: versus Cantor, Dawn-X is warmer, smoother, and far more consistent thanks to fit; Cantor can sound brighter and a bit wider. Compared with FiiO FX17, Dawn-X has tighter bass and crisper treble, where FX17 feels looser and fuller. The 64 Audio U4s plays softer and wider; Dawn-X is more precise/clinical. DUNU Glacier hits harder and more V-shaped with smoother treble but less natural acoustic timbre; Dawn-X sounds truer on instruments. Versus ThieAudio Monarch MK4, MK4 is more neutral, vocal-forward with greater width, while Dawn-X offers denser low-end and a calmer demeanor—and a friendlier fit for many ears. Verdict: 3/5 stars—not the flashiest in its bracket, but arguably AFUL’s best execution yet of its signature sound.

Super* Review original ranking

The 64 Audio Nio is a hybrid with 1DD + 8BA that leans into a richer, warmer presentation, trading ultimate microdetail for slam and engagement. Build and comfort are solid with a classy case upgrade; fit can vary, but tip selection helps. Technicals are mixed: imaging and separation are clean, staging is a bit intimate, and treble resolution is good via the TIA driver without sounding sharp.

The headline feature is the swappable apex modules. M15/M20 push the Nio into basshead territory—big sub-bass, head-nodding punch—while MX reins in the low end for a more balanced tonality that suits acoustic, jazz, and classical. Treble is well-extended yet relaxed; with the right tips, the 5 kHz energy avoids harshness, keeping the overall tuning smooth and non-fatiguing.

Against peers, the Nio’s strengths are its dynamics and configurable bass; its weaknesses are detail retrieval and stage size versus benchmarks like the 64 Audio U12t. Listeners chasing maximum clarity and air may prefer U12t, while those wanting hybrid physicality and tunable low-end will find strong value here. Verdict: choose M15/M20 for guilty-pleasure thump, choose MX for balance—the Nio remains a versatile, engaging high-end option.

Precogvision original ranking

Large, sculpted shells with a bulbous rear (housing the bone conductor) make the Aful Dawn-X a substantial fit—comfortable for some, but risky for small ears. The stock cable feels quality but is 4.4 mm-only, and the case/accessories are tidy; importantly, the nozzle grips tips securely (unlike some past AFUL sets). Overall build is handsome and premium, with fit being the main variable.

Sonically, the tuning favors sub-bass over mid-bass, pairs rich mids with smooth, natural treble that avoids harsh spikes yet has mild 4–6 kHz energy, and presents a cohesive, almost speaker-like soundstage. It wakes up with a bit of volume/power, prioritizing clarity, micro-detail and air over outright slam; the bone conductor subtly supports the midrange more than the lows. At $1,300 it’s competitive for listeners chasing technical refinement and a natural tonality, while value seekers or mid-bass lovers may prefer cheaper AFUL options or sets with more punch.

Jaytiss original ranking