FiiO K13 R2R DAC and Headphone Amplifier

FiiO K13 R2R The FiiO K13 R2R is desktop-class USB DAC and headphone amplifier. Instead of a typical delta-sigma DAC chip, it uses a custom-designed resistor-to-resistor ladder DAC. This network of precision resistors converts digital signals into an analog output, for a warmer, rounder, and more analog sound than typical modern chip-based DACs. 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. Reviews Highly Recommended "Highly recommended as a standout desktop unit. It features an in-house R2R ladder DAC, an R2R volume control, and functions better for most desktop users than its slightly more expensive sibling, the Warmer R2R, because it features both front-facing headphone outputs and a simpler, cleaner sonic transparency" read the review by Darko Audio Giant Killer? Specifications Is a Streamer: ❌ No Finish; Black or Silver Distortion: 0.0185% DAC: Fully Differential 24 bit R2R Resistor Ladder DAC Linear Power supply ❌ No, but you can add an aftermarket one Bit Rate Capability: 32 bit/768 kHz Bluetooth 5.4 input ✅ Yes USB Input ✅ Yes USB-C (2) 384kHz/32 bit DSD 256 Digital input ✅ Yes Coax (1) 192 kHz/24bit DSD64 Opt (1) 192 kHz/24bit Analog out: ✅ Yes RCA (1) XLR (1) Variable Audio Out: ✅ Yes Headphone Amp: ✅ Yes 610mW 16 Ohm, 330 mW Ohm, 35 mW 300 Ohm Headphone connector; 1/4" and 4.4 mm balanced Dimensions 210 × 188 × 42 mm (approximately 8.25 × 7.4 × 1.65 inches) Included in the box: Sold by Audiofi, we ship free in Canada