DACs — FiiO K11 R2R

The K11 R2R is a compact R2R digital-to-analogue converter from FiiO, a well-established Chinese manufacturer known for accomplished, accessible portable and desktop digital audio engineering, built around a distinctive resistor-ladder conversion architecture. The K11 R2R brings FiiO's considered engineering to a space-efficient digital conversion format.

Key specs that matter

The R2R conversion architecture uses Texas Instruments OPA1642 output stages - a distinctive resistor-ladder approach avoiding delta-sigma modulation. DSD compatibility reaches DSD256, with PCM support up to 32-bit/384kHz. Frequency response spans a wide 20Hz to 50,000Hz within plus-or-minus 3dB. Output level is 2.7V single-ended. Signal-to-noise ratio exceeds an exceptional 115dB, with total harmonic distortion plus noise at 0.025% at 22kHz. At a remarkably compact 147 x 133 x 32.3mm and just 0.42kg, the K11 R2R maintains a space-efficient, lightweight DAC chassis.

Sound and use context

Expect the distinctive, purist character R2R resistor-ladder conversion is broadly celebrated for, packed into this remarkably compact, accessible chassis representing exceptional value.

Pairing

FiiO's own headphone amplifier catalogue offers natural, brand-coherent pairings within the same broader compact catalogue.

Alternatives

FiiO's own Warmer R2R offers a more substantial R2R alternative within the same broader digital source catalogue.