The K11 is an entry model of a small, stationary USB DAC headphone amplifier with a slim body, rich input/output headphone amplifier circuit.
FIIO has developed many years of continuous evolution, the K-Series built-in desktop DAC headphone amplifier has been completely new body design with the latest model K11, combined with uncompromising audio playback quality with fully balanced headphone amplifier circuit.
This is a high performance device that can be used to intuitively operate the main unit with an LCD display.

Uses Cirrus Logic DAC chip "CS43198", supports 384 kHz/32 bit, and DSD256 playback.
Fully balanced headphone amplifier circuit, achieves 1400 mW output.
3-level gain control supports a wide range of playback environments from IMM to headphones.
It has a variety of inputs and outputs, so it can be used in the center of your audio system.
The display and knob on the front allow you to intuitively change the function of the main unit.
RGB indicator light on the logo on the top of the main unit.
Sleek and simple housing design.

Specifications:
DAC Chip: CS43198
Amplifier Technology: Left/Right Independent Headphone Amplifier Circuit
Digital Input:
1 x USB Type C
1 x RCA coaxial
TOS Hikari x 1 series
Digital Output: RCA coaxial x 1 (RCA coaxial input and exclusive)
Headphone Output:
4.4mm balance x 1
1 x 6.35mm Single End
Supported Sampling Rate:
USB: PCM 384kHz/32bit, DSD 256 (Native)
RCA Coaxial: PCM 192kHz/24bit
TOS light: PCM 96kHz/24bit
Recommended headphone impedance: 16-300Ω
Frequency response: 20Hz - 50kHz
S/N ratio: more than 123dB (A-weighted)
THD+N: less than 0.00035% (at line output / 1 kHz / 10 kΩ)
Noise Floor:
Less than 2.8uV (single end, A-weighted)
Less than 4.9uV (balance, A-weighted)
Output Impedance:
1.2 ohms (with single end, 32 ohm load)
2.4 ohms (balance, 32 Ω load)
Dimensions: 5.8 x 5.3 x 1.3 inches (147 x 133 x 32.3
Weight: Approx. 14.1 oz (407 g).
Accessories:
AC Adapter
Power Cable
USB Type A to C Cable
6.3mm to 3.5mm Adapter
Quick Start Guide