The FiiO M33 R2R integrates an independent XMOS XU316 USB chip, which supports USB DAC up to 768kHz/32bit and DSD512 (Native). Local playback supports 384kHz/32bit and DSD256 (Native), ensuring uncompromising high-resolution decoding. The coaxial output supports up to 384kHz/24bit and DSD128 (DoP/D2P). With a balanced output of up to 1100mW + 1100mW @32Ω and multiple amplification modes (low / mid / high / headphone amplifier), the FiiO M33 R2R portable music player can reliably drive both sensitive IEMs and demanding full-size headphones.
The FiiO M33 R2R supports Bluetooth 5.0 with SBC / aptX / aptX HD / LHDC / LDAC transmission codecs and SBC / LDAC reception support. Two Type-C ports enable USB DAC functionality and Desktop Mode, isolating battery usage.
The large-capacity 4400mAh battery, combined with 30W fast charging, allows for a full charge in approximately 1.5 hours, providing up to 15.5 hours (single-sided) or 13.5 hours (balanced) of playback.
Specifications:
Device dimensions: 138.2 mm × 71.5 mm × 17 mm
Weight: 258 g








