FiiO R7 Desktop Music Player with R2R DAC

The FiiO R7 R2R is an all-in-one desktop music player, streamer, DAC, headphone amplifier, digital transport and USB sound card, built to be the heart of a compact hi-fi system. It is built around FiiO’s own fully differential 24-bit R2R DAC, runs Android 13 on a Qualcomm Snapdragon 680 with 8GB of RAM and 128GB of storage, and has a 5.5-inch touch screen, three balanced and single-ended headphone outputs delivering up to 3,700mW into 32Ω, and connections for powered speakers, amplifiers and the rest of your system.

FiiO’s fully differential R2R DAC

Instead of a conventional DAC chip, the R7 R2R uses FiiO’s self-developed, fully differential, complementary 24-bit R2R resistor-array DAC. Its four channels use a total of 192 precision thin-film resistors with 0.1% tolerance and low temperature drift, giving the natural, smooth presentation R2R is known for while keeping excellent accuracy.

DAPS: FiiO’s digital audio processing

FiiO’s DAPS digital audio processing system pairs a high-capacity FPGA with two custom femtosecond oscillators. It provides a global 10-band PEQ, global lossless playback without sample-rate conversion, All-to-DSD processing and low-jitter S/PDIF output, with coaxial jitter as low as 71.5ps, so the R7 R2R also works as a dedicated digital transport. Auto EQ quickly matches compatible headphone profiles, and the 10-band PEQ lets you fine-tune any band by hand.

Android 13 on a Snapdragon 680

A customised Android 13 system runs on Qualcomm’s octa-core Snapdragon 680, with 8GB of RAM and 128GB of storage, leaving plenty of headroom for streaming apps, large local libraries and future updates. The 5.5-inch portrait touch screen works with physical rotary controls and FiiO’s redesigned interface for a purpose-built desktop feel. Dual-band 2.4GHz/5GHz Wi-Fi handles wireless streaming, and a gigabit Ethernet port gives a stable, low-latency connection for network audio.

Nine modes, one box

Switch between Android, Pure Music, AirPlay, USB DAC, Roon Ready, Bluetooth receiver, line input, coaxial and optical modes. As a USB DAC, its XMOS XU316 interface plays PCM up to 768kHz/32-bit and DSD512 from a computer, tablet or phone, for music, films and everything else. The FiiO Control app adds remote control and screen mirroring.

Power for any headphone

Three front headphone outputs (6.35mm, 4.4mm balanced and 4-pin XLR balanced) and five gain levels (low, medium, high, headphone and super headphone) suit everything from sensitive in-ear monitors to demanding full-size headphones, with up to 3,700mW into 32Ω from the balanced outputs in the highest mode. The fully differential analogue stage uses carefully chosen parts: four Burr-Brown OPA1656 and two OPA1612 op-amps, four Rubycon audio electrolytic and four Rubycon film capacitors, and twelve high-capacity filter capacitors.

Connections for your whole system

On the back are RCA line output, RCA line input and 3-pin XLR balanced line output, coaxial and optical inputs and outputs, gigabit Ethernet, a USB host port, USB-C (USB 3.0), a dedicated USB DAC input and an SD card slot. Four output modes (PO + PRE OUT, PO only, PRE OUT only and LO) set it up for headphones, powered speakers, external amplifiers or a wider hi-fi system.

AC or DC power

A built-in 30W switching power supply, with filtering at the AC input, feeds a ±12V supply for the analogue section. A switch on the back selects AC or an external 12V/3A DC input, so you can use a higher-grade supply such as FiiO’s PL50.

Good to know

• Customisable RGB lighting rings the two front knobs, and two desktop stands (angled and flat) set the viewing angle. A dust plug protects the headphone sockets when you mainly use speakers.
• For R2R sound on the move, FiiO’s M33 R2R portable player also runs on a Snapdragon 680.
• In the box: R7 R2R, AC power cable, USB cable, 6.35mm to 3.5mm adapter, angled and flat desktop stands, spare fuse, dust plug, quick start guide and after-sales service card.