FiiO K11 R2R Desktop DAC & Headphone Amplifier – 24-Bit R2R / 4.4mm Balanced

FiiO K11 R2R Desktop DAC & Headphone Amplifier

Build a dedicated listening station around your computer or digital audio source with the FiiO K11 R2R, available from AX Store Kuwait. The FiiO K11 R2R combines resistor ladder conversion, two headphone connections and rear RCA outputs in a compact desktop unit. Choose Black or Silver to suit your workspace.

Explore compatible listening options in the AX Store headphones collection.

Black or Silver

A Different Route to Digital-to-Analog Conversion

The R2R circuit uses 192 precision resistors with 0.1% tolerance. It replaces a conventional DAC-chip approach with a resistor ladder. NOS retains the incoming sampling rate; OS processes audio at 384kHz. These modes let you compare two processing approaches using the same headphones and music.

Match the Output to Your Headphones

Use the 6.35mm connection with standard single-ended headphones, or the 4.4mm connection with a compatible balanced cable. At 32 ohms, output is rated at 460mW per channel single-ended or 1300mW per channel balanced. Low, Medium and High gain help you set a useful volume range for your headphones.

Connect Your Digital Sources and RCA System

For a different DAC and amplifier configuration, compare the FiiO K7. It uses dual AK4493SEQ DACs and THX AAA 788+ amplification; it is a separate model with a different circuit design.

High-Resolution Input, Clearly Defined

USB accepts PCM up to 384kHz/32-bit, while the R2R conversion stage is 24-bit. Coaxial input supports PCM up to 192kHz/24-bit; optical supports up to 96kHz/24-bit. DSD256 playback requires a compatible Native output configuration and is converted internally to PCM before reaching the resistor ladder.

For Windows USB playback, use the FiiO USB DAC driver and select the device in your system and player. macOS does not require an additional driver. The selected player, USB mode and output configuration determine which formats are available.

Everyday Control from the Front Panel

The LCD shows sampling rate, volume, gain and output mode. Turn the knob to adjust volume; use its press actions for input selection and settings. A double press switches between the headphone and RCA output modes. The RGB logo can be adjusted to suit your desk, while automatic idle mode reduces power use when there is no audio input.

Compact Size, External Power

At approximately 147 × 133 × 32.3mm including the feet, the K11 R2R fits into a compact listening setup. It uses an external DC 12V/2A supply rather than USB bus power. The internal power circuit includes 17 LDO regulators and two DC-DC converters; DC protection and pop-noise suppression support headphone operation.

What's in the Box

Complete Your Desktop Audio Setup

• Audio-Technica ATH-M50x Black — a closed-back headphone option; connect to the 6.35mm output using its supplied screw-on adapter.
• DACs and headphone amplifiers — compare connection and amplification options.
• Pro Audio Gear — explore equipment for your wider audio setup.

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Technical Specifications