FiiO K11 Compact Desktop DAC and Balanced Headphone Amplifier Hi-Res Black

The FiiO K11 is a compact desktop DAC and balanced headphone amplifier from FiiO's K-series desktop range, built around a CS43198 DAC chip and delivering up to 1400mW + 1400mW from its 4.4mm balanced output into 32 ohms.

Key specifications

• Main chip: GD32F303RET6
• DAC chip: CS43198
• Inputs: USB-C, optical, coaxial
• Outputs: 4.4mm balanced, 6.35mm, RCA line out, coaxial
• Output power: Up to 1400mW + 1400mW (balanced, 32 ohms)
• Hi-Res support: Up to 384kHz/32-bit
• DSD support: DSD256 hardware decoding
• Gain: 3 levels, each with its own volume curve
• Display: Always-on VA display
• Lighting: Adjustable RGB logo lighting
• Driver-free operation on Windows 10 and above
• Dimensions: 147 x 133 x 32.3mm

A variety of inputs and outputs

The K11 accepts USB-C, optical and coaxial inputs and offers 4.4mm balanced, 6.35mm, RCA line and coaxial outputs, making it a flexible hub for a desktop audio setup. USB connection to phones decodes audio without drawing on the phone's battery. The coaxial input and output share the same physical connector; coaxial output is available in USB mode only.

Large power output

Under a 32Ω balanced load, the K11 delivers 1400mW per channel — enough to drive a wide range of HiFi earphones and headphones to their full potential. If you need more headroom or additional features such as Bluetooth streaming, the FiiO K15 steps up the K-series range.

3 gain levels, 3 volume curves

Three separate gain levels each carry their own volume curve, letting the K11 suit sensitive in-ear monitors and harder-to-drive over-ear headphones alike.

Specially designed audio circuit and power supply

The K11 houses a dedicated audio circuit supported by more than 16 low-noise LDOs for precise voltage stabilisation, powered by an external 12V switching power supply. This delivers a stable, low-noise power feed for consistently high-quality audio.

Slim and stable

The slim aluminium alloy body fits easily on any desk. A silicone anti-slip pad keeps the unit firmly in place during use.

Clear always-on display

A custom high-contrast VA display shows sampling rate, volume, gain and output mode at a glance.

Adjustable RGB logo lighting

The FiiO logo is lit by six RGB LED strips working with a reflective film and shaped body panels to produce a uniform light effect. The lighting indicates the sampling rate of the current playback source.

One multifunction volume knob

The single multifunction knob handles power on/off, menu navigation, volume adjustment and output switching. Press and turn for quick actions; double-press to toggle between LO and PO modes.

Driver-free mode for plug-and-play

In USB DAC mode the K11 requires no driver on Windows 10 or later and works with the PS5 and Nintendo Switch straight out of the box. An optional driver can be installed to unlock support for higher sampling rates.