The FiiO K9 Skylight is a desktop DAC and headphone amplifier with dual ES9068AS chips, THX AAA 788+ amplification, LDAC Bluetooth and DSD512 support. It's a one-box desk setup for listeners driving full-size headphones from a computer over USB or a phone over LDAC.
Who the FiiO K9 Skylight is for
Full-size headphone owners: It has enough amplification for full-size headphones that a dongle would leave sounding thin.
One-box desk setups: You get a DAC and amp stack on the desk without actually stacking anything.
Computer and phone listening: USB covers the computer, and LDAC over Bluetooth covers the phone when you don't want to plug in.
DSD libraries: DSD512 support handles DSD playback without a second device.
vs SMSL DO400: The DO400 is built on an ES9039MSPRO converter with an XMOS XU316 interface; choose the K9 Skylight if you want dual ES9068AS chips feeding THX AAA 788+ amplification.
vs FiiO K13 R2R: The K13 R2R replaces dual ES9068AS chips with a 24-bit R2R resistor-ladder DAC (NOS/OS modes), but its USB input tops out at DSD256; pick the K9 Skylight for 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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