The Questyle M15C is a portable USB DAC and headphone amp in dongle form, built around the CS43198 DAC chip. It sits between a jackless phone or laptop and your IEMs or headphones, replacing the host's built-in converter, which makes it a natural upgrade for multi-driver hybrid and planar IEMs run off a basic adapter.
Who the Questyle M15C is for
Jackless phone owners: It sits between the phone and your IEMs, so you're no longer relying on the converter built into the handset.
Laptop listeners: It replaces the laptop's built-in audio conversion with a dedicated CS43198 DAC and headphone amplifier.
Hybrid and planar IEM owners: If multi-driver hybrids or planar sets have been running straight off a basic adapter, this is the piece that replaces it with a proper DAC and amp.
Headphone users: It drives headphones as well as IEMs from a phone or laptop.
vs FiiO KA13: Uses dual CS43131 chips rather than the CS43198 and is rated up to 550 mW, its headline feature; worth weighing if your headphones are hard to drive.
vs Shanling UA4: Built on an ES9069Q instead of the CS43198, with an OLED display and 4.4 mm balanced plus 3.5 mm outputs; it lists PCM up to 32-bit/768kHz and native DSD512.
Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging, and backed by our 1-year TonePier warranty and 45-day returns.
Where does my order ship from, and how long does it take?
Every order ships from our warehouse in China, with full tracking, and most orders ship within 3 business days. Shipping is free on every order; most US orders arrive within 7–15 business days and most orders to other countries within 7–20 business days — see our shipping policy for details.
What if it isn't for me?
You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.
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