Binary Dynaquattro VS 7Hz Timeless 2

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Binary Dynaquattro comes dressed to impress: a larger, comfy shell that sits better than it looks, though seating can be a touch finicky. Accessories feel thoughtfully chosen—a Pelican-style case, usable tips, and a standout cable with a screw-lock modular plug (ships with 4.4 mm) and a handsome gunmetal vibe; the chin slider actually works and handling is supple with a slight rubbery grip. Build notes versus peers: it’s notably bigger than Gizaudio Chopin (flat 2-pin vs. Chopin’s recessed) and a bit larger than AFUL Magic One, but overall comfort remains solid.

The tuning aims dead at a preferred target: rich, deep sub-bass with restrained mid-bass for a clean foundation, energetic mids, and a deliberate 4–6 kHz dip to keep fatigue low; air is “good for the price,” with upper-treble sparkle the only wish-list item. Technicals read 9.5/10 bass, 9.5/10 mids, highs a notch behind, plus nice imaging, pleasing note weight, and a natural stage/resolution balance. Versus the field: deeper, higher-quality bass than Chopin; competes surprisingly well with the pricier Thieaudio Oracle MK3; more engaging than the neutral-leaning Moondrop x Crinacle Dusk; preferred over Project M thanks to truer target adherence; trades blows with Dunu Da Vinci (Da Vinci = a touch more upper air; Dynaquattro = better bass/mids). Close kinship with Juzear 61T (choose Dynaquattro for richer bass, 61T for a more inoffensive, cheaper take), and consider Letshuoer Cadenza 4 if similar mids with less bass is the brief.

In practice this is a fun, fatigue-lite, bass-quality-first all-rounder with tuning doing the heavy lifting—“tuning trumps technicality” in the best way. The package, from the utilitarian accessories to the modular cable, matches the sonic story: high value, target-true, and easy to recommend for music and gaming (9/10). Call it a five-star pick and a “100-point overall” vibe for listeners who want clean sub-bass authority, lively mids, and a relaxed upper-mid/low-treble that invites longer sessions without dulling the experience.

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Binary Dynaquattro comes out swinging with a wild driver setup: three active dynamic drivers of different sizes plus a passive radiator. The result is bass that doesn’t just thump—it quakes. Think ~19 dB of lift and subsonic roll that feels like distant construction equipment or Godzilla pacing outside, yet the rest of the tuning stays aggressively smooth and listenable. There’s a hint of wide soundstage on the right tracks, decent comfort, pretty shells (though the translucent plastic shows ear oils), and a surprisingly nice kit at around $270, including a rugged, locking, nearly waterproof-style case.

Make no mistake: this is a basshead experience set to “movie theater sub-10 Hz demo,” more sub-bass than most IEMs dare. It doesn’t chase micro-detail or razor dynamics, and the treble stays polite rather than sparkly—but for those craving seismic low end without trashing everything else, it hits the sweet spot. Call it a one-trick Clydesdale that pulls the biggest, dumbest, most fun bass wagon—and that’s exactly the charm. Verdict: a solid 9/10 for anyone who wants the next step up in tactile low-end thrills without blowing the budget.

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Timeless 2 shows up with a bigger, round shell (carbon-fiber face, metal rim), a nice hard case, and an oddball-but-cool ribbon cable on MMCX that feels a bit stiff. The real headline is the swappable nozzles: tiny side-vent “pin” nozzles (stock), a “flower” top-vent nozzle, and a large side-vent set. Tip pack is a colorful grab bag (no foams), and care is needed because narrow bores can block those side vents. Power isn’t a problem—this set is very efficient and plays happily from a phone or desktop amps without turning harsh.

Sonically, the three nozzles behave like three different tunings. The stock tiny side-vents are wide, chill, and distant—easy listening with big space. Swap to the “flower” top-vent and everything snaps into focus: detail rockets up, staging comes closer, and transients clean up without tipping into sibilance; bass also tightens and gains punch. The big side-vent option brings more bass weight and a huge stage, trading a bit of hyper-detail for scale and fun. Tip rolling matters: wide-bore silicone (e.g., Dunu SS) or high-seal foams can make it a party in the head, while tight-bore foams can choke the vents and thin the sound.

With the right nozzle/tip combo, Timeless 2 goes from “good planar” to aggressively engaging: thunderous taiko hits, breathing and string texture on acoustic tracks, and club-ready energy on electronic. It feels like the most complete planar IEM here—big soundstage, real bass presence, and crisp clarity that invites louder listening. If pricing sits around the speculated $260–$320 range, this could muscle aside a lot of sets under $500–$600. Verdict: a bold, successful experiment that delivers three flavors of planar goodness, with the “flower” nozzle as the standout for clarity + slam.

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7Hz Timeless 2 arrives as a polished successor to the original, delivering a smoother, more refined treble and a presentation that feels less “planar” in timbre. Its headline feature is the interchangeable nozzle system that meaningfully changes the sound—three distinct tunings rather than subtle tweaks—so fit and flavor are easier to dial in. Technicals remain solid for the class (layering, separation, staging), but the emphasis shifts from raw edge to easy, airy listenability; compared to brighter, snappier planars, this one trades a touch of bite for balance and comfort. Pairing with regular Sedna-style tips further smooths the top end without dulling it.

Midrange is handled with a calmer 2 kHz region, so vocals sound less forward and less shouty on energetic tracks. The silver nozzle tames that zone even more, appealing to listeners who prefer flatter upper-mids while adding a sense of openness and clarity. Bass is punchy, quick, and clean with good impact that avoids bleed; it won’t out-slam a strong dynamic-driver set, but the planar low-end here feels tight and versatile, fitting an all-rounder profile. If ultra-etched detail and hyper-tactile treble are the goal, some rivals push further; if the priority is smoothness without boredom, Timeless 2 hits the brief.

As a value play, sub-$100 options still undercut it, yet the combination of refinement + three nozzles makes Timeless 2 competitive at its price. Owners of recent planars may find it a side-grade in sheer technicals, but for anyone starting fresh—or seeking a safer, fuller tuning that scales reasonably—this is a confident recommendation. Use the smoothing tips and select the nozzle that fits the library, and it becomes a comfortable daily driver for most listeners.