Questyle NHB Series NHB15

The Questyle NHB15 delivers genuinely impressive lossless audio through its built-in DAC, but it's heavy, the cables feel thin, the mic is bad, and right now you can't buy one anywhere. Wait for a restock or skip it.

The sound here is the star. The MA2430 chip pulls its weight, delivering clean, detailed audio that makes lossless tracks actually feel worth the bandwidth. It's not going to blow your head off with bass, but the clarity and separation are impressive for a sub-$200 wired IEM. The 38Ω impedance means it's not the easiest thing to drive from every phone, and a few owners note it needs more juice than an iPhone happily provides. The mic is a weak spot, landing in the 15th percentile, so don't plan on taking calls with these. Connectivity is also middling at the 36th percentile, mostly because the USB-C connector has been reported faulty on some units.

Stacked against the Technics EAH-AZ100, JLab JBuds Pods ANC, Soundcore P31i, Sony WF-1000XM6, or Samsung Galaxy Buds3 Pro, the NHB15 is playing a different game. Those are wireless earbuds with apps, EQ, and noise cancellation. The NHB15 has none of that. What it has is a wired connection and a dedicated DAC chip, which means zero latency and true lossless, things Bluetooth earbuds still can't fully match. But the Bose QuietComfort Ultra and AirPods Pro 3 will crush it on comfort, convenience, and call quality. And right now, the NHB15 has another problem: you can't actually buy one. The wireless crowd is on shelves today. The NHB15 is not.

Stock on these has dried up completely, so pricing is a moot point right now. When they were available, they hovered around $185, which felt fair for a wired IEM with a built-in DAC this capable. But you can't buy them at any price today, and that changes the math. If you're hunting for a pair, you're stuck waiting for a restock or paying whatever a reseller demands. Not a great spot for a product that was already a niche pick.

The Questyle NHB15 is a wired USB-C IEM aimed at people who want actual lossless audio from their phone without dragging around a dongle DAC. It packs Questyle's Current Mode Amplifier SiP chip, the MA2430, which handles the DAC and amp duties at a claimed 0.0002% distortion. On paper, that's a serious flex for a pair of earbuds. In practice, the sound is genuinely good, especially if you're feeding it 192kHz lossless files from Apple Music. But the fit and some build quirks keep it from being an easy recommendation for everyone.

Skip these if you want wireless convenience, active noise cancellation, or a comfortable all-day fit. The NHB15 is heavy for an IEM and has no ANC, no app, and no Bluetooth. If you take calls regularly, the weak mic will annoy you. And right now, the biggest reason to skip is simple: you can't buy one. Out of stock across all vendors, with no restock in sight.

The NHB15 is a niche tool for a niche audience, and it nails that job when you can find one. But with stock gone across the board, the recommendation gets simple: don't chase it. If you already own a pair, enjoy the lossless sound. If you don't, wait for a restock or move on. Wireless earbuds are available now and cover everything except true lossless.