FiiO
FiiO K11 R2R Desktop DAC and Headphone Amplifier, 24-Bit R2R
Compact desktop DAC and headphone amplifier in BlackFully differential 24-bit R2R DAC array with precision resistorsSupports PCM up to 32-bit / 384kHz and DSD256Powerful amplifier section with up to 1300mW x 2 output power
Color
Overview
Product overview
The FiiO K11 R2R Desktop DAC and Headphone Amplifier provides high-quality audio performance with R2R sound character for desktop setups. Built with a 24-bit R2R DAC array and an amplification section that can drive demanding headphones, it delivers excellent sound quality and versatility.
Key features
Equipped with features such as dual headphone outputs and NOS/OS operating modes, it offers flexibility for various listening preferences. The device supports high-resolution audio signals, ensuring compatibility with modern audio formats.
Compatibility
The K11 R2R is compatible with numerous audio devices and can be integrated into a personal audio setup seamlessly.
What's included
The package includes the K11 R2R desktop DAC, power supply, and user manual. Additional accessories may be purchased separately.
THE DETAILS
Technical specifications
General
FiiO
K11 R2R
Desktop DAC and headphone amplifier
Black / Silver
Fully differential 24-bit R2R resistor ladder
192 precision thin-film resistors; 0.1% tolerance; 30ppm temperature drift
Digital Audio and Connections
USB Type-C / optical / coaxial
Up to 384kHz / 32-bit; 24-bit R2R conversion
Up to DSD256 with Native output; internally converted to PCM
Up to 192kHz / 24-bit
Up to 96kHz / 24-bit
NOS / OS
384kHz
6.35mm single-ended / 4.4mm balanced
Stereo RCA
Available in USB input mode only
UAC 1.0 / UAC 2.0
Amplification and Control
1300mW + 1300mW; THD+N <1%
220mW + 220mW; THD+N <1%
460mW + 460mW; THD+N <1%
50mW + 50mW; THD+N <1%
6.35mm: 8–150 ohms / 4.4mm: 8–350 ohms
Low / Medium / High
Three independent curves
NJW1195A electronic volume control
Two TI OPA1642 op-amps
Two SGM8262 op-amps
PO / PRE (LO SE) / LO
Audio Performance
OS mode for the following audio performance figures
At least 115dB, A-weighted
At least 107dB
Less than 1 ohm
Less than 1.5 ohms
2.7Vrms
20Hz–20kHz, attenuation <0.2dB
Display, Power and Dimensions
LCD: sampling rate, volume, gain and output mode
Adjustable RGB FiiO logo
DC 12V / 2A
No internal battery
17 low-noise LDO regulators and two DC-DC converters
DC protection and pop-noise suppression
Automatic idle mode
147 × 133 × 32.3mm, including feet
Approximately 420g
In the Box
K11 R2R; power adapter; power cable; USB data cable; headphone adapter; quick start guide; warranty card
COMPLETE YOUR SETUP
Pairs well with
JDS LABS
JDS LABS ATOM DAC 2 USB-C DAC
Cloud Microphones