FIIO M33 R2R

The FIIO M33 R2R is a high-quality portable HiFi audio player that brings the signature R2R desktop sound experience to a compact and mobile format. Thanks to its fully differential 24-bit R2R resistor array, this model combines the warm, rich, and analog sound that R2R technology is known for with balanced and detailed high-fidelity reproduction. The player was developed with input from acoustic experts and the international audiophile community, resulting in an exceptionally natural and immersive listening experience.

The M33 R2R is powered by a Qualcomm Snapdragon 680 processor combined with Android 13, 8GB RAM, and 128GB internal storage. This powerful configuration ensures smooth streaming, fast operation, and effortless multitasking. Thanks to the generous memory configuration, the device will continue to perform smoothly in the future with software updates. The storage is also expandable via micro SD cards up to a whopping 2TB.

For use as a USB DAC, the player is equipped with an XMOS XU316 chip, which ensures extremely low latency and perfect synchronization between audio and video. This keeps the image and sound accurately balanced at all times, regardless of the connected device. The M33 R2R supports high resolutions up to 768kHz/32bit and DSD512, guaranteeing uncompromising sound quality.

With the integrated 10-band parametric equalizer, the sound can be fully tailored to personal preferences. The AUTO EQ function automatically recognizes the frequency response of the headphones used and optimally adjusts the sound profile at the touch of a button. In addition to preset sound profiles such as pop, jazz, and classical, the player offers extensive options for manual fine-tuning per frequency band.

The advanced multi-stage audio amplification uses high-quality TI op-amps and carefully selected components. As a result, the balanced output delivers up to 1100mW + 1100mW of power, effortlessly driving both sensitive in-ear monitors and demanding over-ear headphones. Multiple gain levels allow the amplification to be precisely tuned to any headphones.

The integrated DAPS Digital Audio Purification System, derived from the flagship M27 model, takes digital signal processing to the next level. With a high-capacity FPGA and dual femtosecond crystal oscillators, jitter is minimized, creating an extremely clean, quiet background in which every musical detail comes through clearly.

The 5.5-inch Full HD display with a resolution of 1080×2160 pixels provides an impressive visual experience. New display themes such as cassette animations, spectrum visualizations, and VU meters give each track a distinctive retro look. The screen features third-generation Corning Gorilla Glass, an oleophobic coating, and a pre-applied screen protector for optimal protection.

The minimalist design with clean lines and an 18:9 aspect ratio gives the M33 R2R a modern and refined look. Weighing approximately 258 grams, the player fits comfortably in the hand, while the matte glass back provides a premium and silky-smooth feel. The device is available in retro gold, dark blue, and black and comes standard with a matching leather protective case.

The powerful 4400mAh battery offers up to 15.5 hours of playback time via the single-ended output and up to 13.5 hours via the balanced output. Thanks to 30W fast charging, the battery is fully charged in about 1.5 hours, ensuring long-lasting listening pleasure without worrying about battery life.

With dual USB Type-C ports, the M33 R2R offers extra versatility. The patented desktop mode bypasses the battery during use and reduces wear and tear, while the dedicated over-ear headphone mode unlocks extra power for demanding headphones. In addition, the player supports both analog and digital outputs, including 3.5mm and 4.4mm headphone and line outputs, SPDIF coaxial, and USB Audio output.

In terms of wireless connectivity, the M33 R2R supports Bluetooth 5.0 with codecs such as SBC, aptX, aptX HD, LDAC, and LHDC for transmission, and SBC and LDAC for reception. This allows it to be easily paired with wireless headphones, speakers, or external DACs. The player is also compatible with the optional RETRO BOX Bluetooth speaker, creating a stylish and versatile listening setup.

The FIIO M33 R2R is therefore a complete, powerful, and refined portable HiFi solution for audiophiles who want to combine the warm character of R2R technology with modern performance, extensive connectivity, and long-lasting listening comfort.