Dunu DK-3001 BD VS Fiio FH19

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Build & accessories are dialed: a glossy white shell with a subtle steampunk-style faceplate, a metallic nozzle with filter that holds tips securely, and a comfy, slightly thicker ergonomic body. The cable uses recessed 2-pin sockets and DUNU’s swappable terminations (quick screw-on system), plus a quality Y-split, locking chin slider, and a leather cable tie; the right side is red-marked for easy orientation. The package is stacked with tips, a 6.3 mm adapter, and a handsome, leather-textured magnetic case that feels premium. Colorway might divide tastes, but the overall presentation lands as exceptional.

Sonically, this hybrid (dynamic + BAs + micro-planars) aims for a slight U-shape with an even keel: clean vocals, crisp detail, and standout treble extension and air without tipping into fatigue. Bass is tasteful but a bit tucked, note weight leans lighter, while imaging is precise and the soundstage feels open and hi-fi. Compared with DUNU’s Da Vinci/Mirai, this brings more upper-energy and extension; versus sets like Pilgrim, Kiwi Ears 4, and Studio 4, it keeps the sparkle yet sounds more complete up top.

The twist: add an ~80 Ω impedance adapter and the DK-3001 BD flips from neutral-leaning to a fun, bassy brawler—bigger slam, cleaner upper-mids, treble air intact, with diminishing returns above ~80 Ω. That puts it toe-to-toe with curves reminiscent of Fatfreq Deuce (but with smoother highs) and even the HiSenior Mega5EST (Bass) vibe. Stock, it’s a firm S-tier pick that prioritizes extension, imaging, and refinement; with the adapter (or a touch of EQ), it climbs to an even higher S. For a $500–$1,000 bracket IEM, this is a standout all-rounder that many enthusiasts might reach for even over pricier sets.

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Build and accessories are a clear win: a sturdy, comfortable, slightly translucent shell with MMCX connectors, a plush 8-wire cable terminating in 4.4 mm, and a premium magnetic case. As a 10-BA set around $1,000, it wears a tasteful black-and-silver faceplate and seals well without pressure issues. There’s a bass switch that nudges mid-bass upward; useful for taste, but not essential.

Sonically it’s a warm-tilted, cohesive presentation: male vocals come through full and rich, female vocals can sound a touch husky, and the mids avoid shout. Treble is clean and pleasant with a bit of 5–6 kHz energy that stays in check; overall clarity is good, though there’s slight hiss and the mid-bass can feel a little loose/flabby rather than tight. Stage and detail are solid, making this arguably one of FiiO’s better efforts, but the value is mixed—graded a strong A4 / S-: recommended if it suits the tonality, yet tough at retail amid fierce competitors; far more compelling on the used market or after a thorough demo.