Description
The FiiO K11 is a compact desktop DAC and headphone amplifier built for desk-based listening setups that want serious output from a slim chassis. Its CS43198 DAC handles up to 384kHz/32bit PCM and DSD256 over USB, with 192kHz/24bit coaxial and 96kHz/24bit optical inputs also on board.
Connectivity is versatile: USB, optical and coaxial inputs pair with 4.4mm balanced and 6.35mm headphone outputs, plus RCA line-out and a coaxial digital output (usable in USB mode) for feeding a larger system. The balanced output delivers up to 1400mW into 32Ω, while three gain levels with three volume curves let the K11 adapt to both sensitive earphones and harder-to-drive over-ear headphones.
Everyday control is handled by one multi-function knob for power, menus, volume and track switching, and the custom LCD shows sampling rate, gain and output mode at a glance. Adjustable RGB logo lighting can even indicate the current sampling rate by color. In USB DAC mode it is driver-free on Windows 10 and above and works with the PS5 and Switch. A specially-designed audio circuit with more than 16 low-noise LDOs, powered by an external 12V supply, supports stable operation, all in an aluminum alloy body just 32.3mm tall (including feet).
Specifications
| DAC | CS43198 |
| Max sampling rate | 384kHz-32bit / DSD256 (USB); 192kHz-24bit coaxial; 96kHz-24bit optical |
| Balanced output (4.4mm) | ≥1400mW + 1400mW @ 32Ω; ≥250mW + 250mW @ 300Ω |
| Single-ended output (6.35mm) | ≥520mW + 520mW @ 32Ω; ≥60mW + 60mW @ 300Ω |
| Gain | L/M/H; adaptive impedance PO 8–150Ω, BAL 8–350Ω |
| Inputs | USB Type-C, optical, coaxial (RCA) |
| Outputs | 4.4mm balanced, 6.35mm headphone, RCA line-out, coaxial out (USB mode only) |
| Line-out SNR / THD+N | ≥126dB (A-weighted) / <0.00035% |
| Power supply | External DC 12V/2A; no battery |
| Dimensions / weight | 147x133x32.3mm (incl. feet) / ~407g |
| Colors | Black / Silver / Titanium |
