Gizaudio x Binary Chopin VS Aful Explorer

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Initial skepticism about yet another reviewer collab IEM quickly evaporates, as the Gizaudio x Binary Chopin is declared a standout, potentially the best collab IEM in years and even an all-time favorite. For a $200 hybrid IEM from a relatively unknown company, it delivers a performance that is really, really good, making it an exceptionally exciting and competitive offering in its price bracket.

Physically, the Chopin is a bit of a mixed bag with an awkward, truncated teardrop shape, but it scores points for its compact overall size. The main fit consideration is the wide nozzle, which requires a secure ear tip for stability since the entire fit depends on the ear tip coupling with the canal. The included cable is praised for being simple, lightweight, and highly functional with a secure chin slider.

Where the Chopan truly shines is its sound. While its graph looks similar to the lackluster Truthear Nova, the Chopan's significant deviation with meatier bass provides a welcome sense of heft and body, making the entire presentation more enjoyable. The mid-range is clean and vocals are fantastic, coming across crisp and well-isolated. However, the star of the show is the outstanding treble, described as sharp, incisive, and possessing a great sense of weight that outperforms not just its competitors but even more expensive sets. It is declared superior to legendary IEMs like the Moondrop Dusk and the 7Hz Timeless, making it a full five-star product and an easy recommendation.

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Aful Explorer is a $120 hybrid (1DD + 2BA) that breaks from the brand’s usual neutral-with-sub-bass tilt and goes for a warm, bass-tilted signature. The package is simple but well chosen: two full sets of tips, a compact, soft-touch zip case, and a handsome stock cable available in 3.5 mm or 4.4 mm (with a secure chin slider and standard 2-pin). The semi-custom acrylic shells are medium-small, comfy, and stable—even suitable for side-sleepers—with above-average isolation and sensible venting. Overall build and ergonomics punch above the price.

Tonally, Explorer delivers satisfying impact with both sub-bass rumble and enough mid-bass to give kick drums real punch. Upper-mids are a touch relaxed, so vocals sit more within the mix rather than spotlighted. Treble is smooth yet carries a bit of sparkle for definition; despite graphs suggesting limited “air,” the timbre and perceived clarity are well judged. Stage favors depth over width, and the overall presentation stays engaging without stridency or mud—warm, dense, but not soupy.

Against peers, it’s the warmest pick here: more bass-rich than the Truthear Hexa (which remains the vocal-friendly warm-neutral choice), fuller and more polished than the older FiiO FH3 (though FH3 still throws a slightly wider image), and punchier than the single-BA Aful Magic One. Explorer is also the most distinctive AFUL tuning to date and arguably the most fun—especially for listeners prioritizing bass satisfaction over vocal focus. Verdict: a confident 4 stars for an entry-level IEM that brings a fresh flavor to AFUL’s lineup.

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The Gizaudio x Binary Chopin IEM is an absolute standout, delivering a fantastically unique and immersive sound signature that is heavily focused on vocals. The presentation is spectacularly detailed, making any vocal track, from opera to pop, slam you in the eyeballs in the best way possible. The soundstage is its most intriguing feature; it doesn't sound wide or narrow but instead creates a phantasm-like effect where the music seems to wrap around and even behind your head, a phenomenally cool and different experience.

This is achieved through a hybrid driver setup of a single 8mm dynamic driver for a natural and impactful low end, plus three balanced armatures handling the mids and highs. The package is exceptionally well-presented with a clean box and a professional-looking case. It also comes bundled with the Divinus Velvet tips, which are so smooth they are considered the best pairing for this IEM and are almost mandatory for the intended experience.

Priced at $200, the Chopin is 100% worth it. The build quality extends to its cable and the smallest two-pin connectors ever seen, and the overall tuning is simply fantastic. It’s a refreshingly different IEM that avoids any painful treble or recessed mid-range, making it an easy, highly recommended pick for anyone looking for something special that excels with vocal-centric music.

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Aful Explorer hits way, way above its bracket. Tuning snaps into focus with impact, cohesion, and smoothness that feel “stupid good” for $120—the kind of price that triggers a double-take. Expect a balanced, warm-leaning presentation that takes volume like a champ and turns kick drums into head-hugging thunder without smearing detail. Timbre is clean, clarity pops, staging gets big and immersive, and bass boost toggles aren’t required to have fun. Call it a giant killer, an easy 10/10, and a “top five of the year” contender that begs for playlist shuffles—from anime scores to classic synths—while scaling noticeably with better amps.

Build is light and comfy with twinkly blue faceplates, flush 2-pin sockets, and a stock cable that’s nicely twisted and terminated in 4.4 mm (full approval), though the ear hooks are thick and springy—softening the bend helps. The nozzle is a simple open port (no mesh), so keep ears clean. Accessories include multiple silicone tips and a compact, rubberized case that’s genuinely pocketable. Inside, it’s a 1DD + 2BA hybrid with a proper electronic crossover, 3D-printed acoustics, and pressure-balance tech; on paper it’s 26 Ω and “easy to power,” in practice it plays nicely from affordable dongles yet still rewards class-A and tubes with extra body and space. Minor QC quirks (a cosmetic cable sleeve can slip; easily fixable or just swap cables) don’t blunt the verdict: this is Aful’s most exciting budget brawler to date, out-punching the Performer series on pure fun-per-euro.

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The Gizaudio x Binary Chopin presents a unique value, particularly for those who typically prefer speakers or over-ear headphones. Its greatest strength is its extreme comfort and easy fit, making it ideal for long gaming or music sessions without the pressure buildup common with other IEMs. Sonically, it boasts a very good quantity of bass and exceptional vocals that really pop in the mix.

However, the Chopin is not without its weaknesses. The quality of the bass is not world-class, and it can lack some air and sparkle in the highs. The most significant complaint is in the technicals of instruments, which can sometimes sound a bit muffled, unresolving, and odd in their tonality and timbre compared to the standout vocals.

When compared to the TruthEar Nova, the Chopin is found to be livelier and more musical, with warmer, richer lows, while the Nova is drier and more clinical with slightly better highs. Both are considered technical benchmarks at their respective price points. The Symphonium Meteor, meanwhile, is deemed overpriced and its bass is noted as being too overpowering, making the music sound off despite its small, comfortable shell.

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Build & accessories punch above the price: the familiar Aful shell is exceedingly comfortable, light, and easy to seal, with a fit that feels “custom-like.” The new pocketable case has a soft, leathery feel and solid zipper, and the off-white two-pin cable mirrors the Pilgrim’s look and handling—supple, tidy, and on-theme with the Explorer’s subtle “space” aesthetic. Overall presentation feels notably premium for ~\$120.

Tonally, this is a dark, L-shaped tuning with a confident bass shelf and great dynamics, a deliberate 4–6 kHz dip for long-term comfort, and smooth upper-treble “air.” The graph aligns closely to the target aside from a subdued 1.5–4 kHz region, so vocals are relaxed rather than forward—non-fatiguing but not for strict Harman chasers. Versus Performer 8 and 5, Explorer brings deeper bass and a calmer presence region; compared with Magic One, it sounds richer and more organic; against CCA Hydro or PULA PA02, it offers more natural timbre, better build, and stronger value. Stage and mids can feel intimate, and tip selection/modular options are basic, but as a whole it earns a solid 8.1/10 and a full recommendation for listeners wanting a smooth, bass-weighted, non-fatiguing set that “hits different” at this price—akin in spirit to a darker Jupiter, at a tiny fraction of the cost.

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The Gizaudio x Binary Chopin is positioned as a more authoritative and engaging take on the familiar Harman target. It features a pronounced sub-bass that fills in the typical scoop without overdoing it, providing more slam and weight than predecessors like the Nova or Hexa. This gives the low end more authority, preventing it from sounding anemic, though it doesn't reach the subwoofer-like physicality of sets like the EA1000. The mid-range remains very clear, uncolored, and well-separated, benefiting from the extra mid-bass to sound fuller than the Nova while maintaining a correct tonal balance with no bias toward male or female vocals.

The upper mids and treble are where the Chopin really differentiates itself, coming across as a more engaging and lively version of the Nova. A boost in the 5k and 10k regions adds excitement and liveliness, creating a more open and airy stage. This makes it reminiscent of the Simgot EA1000 but much smoother overall. When compared to other sets, it's a clear upgrade over the Nova and bests competitors like the Performer 5 and EM6L with its better resolution and treble extension without low-end sacrifice. It's also a smoother, more weighted alternative to the Heyday and a more affordable option that delivers about 85% of the performance of the Moondrop Variations.

Ultimately, the Chopin is a smoother all-rounder that makes the standard Harman target less boring. It's a highly competitive set that sounds cleaner than the Kiwi Ears Hype 2 with a less pronounced bass that better highlights the mid-range, though the Hype 2 retains an advantage in bass texture for genres like EDM and hip-hop. The choice between them becomes library-dependent, but the Chopin stands out as a very well-tuned and compelling option in its price range.

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Aful Explorer sits around the $100 mark as a set that trades raw resolution for a uniquely relaxing tuning. At mid volume it’s a smooth, non-fatiguing listen with vocals a touch pulled back, a gentle upper-mids scoop, and a roll-off past ~15 kHz—so don’t expect sparkle or air in that range. The magic happens when it’s cranked: the set scales exceptionally, staying silky even loud, vocals come forward more naturally, and staging gets that wrap-around, immersive feel without turning sharp thanks to restrained 3 kHz energy.

Against pricier or punchier peers: versus Da Vinci, Explorer’s low-end has tighter mid-bass separation and quicker decay, but it doesn’t slam as hard; Da Vinci is more resolving, extended, and better balanced at mid volume, while Explorer becomes the more engulfing listen once volume climbs. Compared with the S8 planar, Explorer brings deeper sub-bass and fuller notes but a softer attack and less upper-mid/treble detail; the S8 stays cleaner, faster, and a bit brighter, thriving at moderate levels, whereas Explorer is the turn-it-up specialist.

For alternatives, Ziigaat Cinno is the cleaner, more airy take with sharper imaging and higher detail (with hints of BA timbre) and leaner sub-bass; Explorer hits harder, deeper, and stays smoother and more “musical.” CKVX offers a fuller low-end with a more pushed-back stage and better mid-volume resolution, while Explorer is the intimate, high-volume pool-of-sound. Magic One runs the warmest, with huskier vocals and mid-bass-centric weight that suits drums/rock/jazz but lacks the Explorer’s sub-bass presence and immersion. Net: if playlists lean hip-hop, rock, R&B, or lo-fi and volume tends to be lively, Explorer is a standout flavor; for quieter sessions or a priority on air and micro-detail, look to Chino/S8/CKVX. Both Explorer and Chino make compelling side-grades to the usual Harman-ish suspects like Nova and Supermix 4 without bruising the wallet.

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Aful Explorer debuts at $120 with a clever blend of the Performer series’ RLC crossover and the Magic One’s 3D-printed resonators. The package is generous: a compact blue suede case, a silvery two-wire cable (3.5mm, also available in 4.4), and six tip pairs. The resin shells are neatly finished, pressure-relieved, and lightweight; the nozzles have open bores (mind debris—tips with mesh help). Comfort follows the usual semi-custom story: when the shape matches, they disappear; when it doesn’t, they don’t. The softer white stock tips work better than the stiffer blue cores, and SpinFit swaps (CP145/CP100) can improve retention. Aesthetic verdict from the “council”: sparkly blue with silver cable gets compliments.

Tonally, Explorer leans warm-neutral with a fun low-end. Sub-bass digs deep with tactile rumble, mid-bass adds weight without bloat, and the single DD keeps it tight. The mids are the star—natural, even, and unmasked; instruments and vocals sit correctly without husk or nasality. Up top, the treble is smooth and relaxed yet still resolves detail; cymbal timbre and vocal overtones decay cleanly without glare, inviting volume increases without fatigue. Technicals are quietly confident: clear separation, tidy imaging with some depth from the bass foundation, and a stage that feels average in size but organized. Sensitivity is high and impedance low, making them easy to drive from phones, tablets, and laptops.

Against peers, Explorer feels special under $300. Versus Letshuoer S08, Explorer is the more neutral and laid-back partner with a touch more sub-bass, while S08 adds upper-mid and mid-bass energy for a slightly more “exciting” tilt (Opera favors Explorer; classical often flatters S08). Performer 5 is more balanced with lighter bass and forward mids, and ZiiGaat Doscinco brings a warmed-up V-shape with bigger slam and more treble energy. Net-net: Explorer is a superb all-rounder with unique, well-executed tuning, standout accessories (that case!), and beautiful shells. The only asterisk is fit—try before you buy or use a friendly return policy. If the S08 felt too warm or planar-flavored, Explorer’s smoother hybrid take should be near the very top of the shortlist.