FiiO K11 R2R, headphone amplifier with DAC

FIFiiO K11 R2R is a high-quality desktop DAC and headphone amplifier system designed for those who seek impeccable sound reproduction. This device features a fully differential 24-bit R2R DAC architecture, dual NOS/OS mode, and a powerful 1300mW+1300mW output power, allowing it to easily drive even the most demanding headphones.

Fully differential 24-bit R2R DAC – low noise and better sound quality.
Dual NOS/OS modes – authentic sound reproduction and higher quality sound.
Supports PCM 384kHz/24bit and DSD256 decoding.
Electronic volume control – precise and low distortion.
1300mW+1300mW output power – easily drives a variety of headphones.
LCD display with RGB backlight – clear information about sound parameters.

The headphone amplifier with DAC features an innovative R2R architecture. It allows you to achieve the highest sound quality regardless of the style of music. This DAC, designed with a 24-bit precision resistor matrix, ensures extremely detailed and natural sound reproduction quality. With both Non-Oversampling (NOS) and Oversampling (OS) modes, the K11 R2R gives users the choice of reproducing the original sound or upsampling it up to 384kHz. This DAC creates a warm, musical sound that is particularly appealing to lovers of classical music and vocals. It also ensures a perfect balance between low and mid frequencies.

Versatility and convenient control in various situations

This model is extremely versatile, as it has USB-C, optical and coaxial connectors, so it can be used with various devices, such as computers, smartphones or even TVs. The FiiO K11 R2R is also equipped with a color LCD screen and a single control button, which provides a convenient and simple user interface. The screen displays information such as the device status, such as the audio codec type or sample rate, helping the user to monitor the reproduced sound. In addition, the K11 R2R supports the FiiO Control app, where you can adjust various sound settings and equalizer modes, thus ensuring a personalized listening experience.

Powerful amplifier and energy-saving design

FiiO K11 R2R generates up to 1300 mW of power through 32 ohm headphones, which means that it will cope perfectly with various types of headphones, even with high-impedance models. This device has an integrated NJW1195A electronic audio control chip, which ensures low noise and high dynamic range. K11 R2R also uses efficient power management, which allows the device to operate longer without overheating, as heat is effectively removed through the aluminum alloy body. All this creates an extremely stable and high-quality sound, and the small size of the device makes it easy to transport or use stationary. This is a compact device designed for convenient use every day. The unique structure of its internal components and the materials from which it is made will always help you enjoy high-quality sound.

Reproducible frequencies (Hz) 20 Hz - 50 kHz
Balanced headphone output Yes
DAC Chip FIIO R2R DAC
Power (mW@16Ω) 660 mW
Power (mW@32Ω) 460 mW
Power (mW@300Ω) 50 mW
Power, Balanced Out (mW@300Ω) 520 mW
Power, Balanced Out (mW@32Ω) 1300 mW
Power, Balanced Out (mW@16Ω) 220 mW
Weight, g 420 g.