FIIO K13 R2R Compact Desktop DAC and Headphone Amplifier

FiiO has equipped the K13 R2R with a properietary fully differential 24-bit R2R resistor array with four channels. It consists of 48 resistors per channel, totalling 192 high-precision, ultra-thin film resistors with an accuracy of 0.1% and low temperature drift between the four channels.

Thanks to the specially designed audio circuit architecture, it promises an organic, clean, and smooth output with a dark background. For those who crave a less "digital" sound, R2R can be a great option with its uniquely rich and musical output.

Almost double the power of the K11 R2R! Boasting a balanced output power of 2400mW+2400mW into a 32Ω load, the K13 R2R can effortlessly drive both high-fidelity IEMs and headphones, unlocking their full potential and allowing them to render every last detail.

Three different gain levels mean the K13 R2R is able to adapt to various kinds of IEMs and headphones for better listening experiences. Moreover, the volumes of PO and PRE out modes can be set and recalled independently.

A custom, high-contrast, long-lasting HD LCD display clearly shows the device’s current status at a glance, including sampling rate, volume, gain, and output mode. LCD technology is not susceptible to burn-in, allowing a longer-lasting device.

K13 R2R features lighting in its knobs and through the skylight top. Not only does the RGB lighting indicate the current audio sampling rate, but you can also customize the brightness, colors, and whether it pulses or not.

Equipped with USB-C, optical, coaxial, and Bluetooth digital inputs; XLR and dual RCA analog line level outputs; and two headphone jacks (1/4" single-ended and 4.4mm balanced), the K13 R2R acts as a bridge between your computer and phone to your headphones and speakers, allowing them to work together seamlessly with upgraded sound.

Switchable low, medium, and high gain levels are available, enabling you to use the more powerful built-in amplifier at comfortable volume levels with most headphones.