FiiO expands its portfolio with the compact R2R desktop DAC/AMP K13 R2R and the FT13 closed-back over-ear headphones, both designed for musical warmth and technical accuracy. This combination is aimed at audiophiles who appreciate organic sound aesthetics with modern connectivity and offers versatile solutions for desktop setups or mobile listening. The products combine traditional R2R technology with innovative materials for an immersive experience.
- K13 R2R: Fully balanced 24-bit R2R DAC with NOS/OS modes, Bluetooth LDAC and 2400 mW output power.
- FT13: Closed over-ear with 60 mm drivers, PU/wool nano wood fiber cone and modular cables.
- Both with premium workmanship: PEQ adjustment on the DAC, replaceable pads on the headphones.
- Prices: K13 R2R from 319 euros, FT13 available for 329 euros.
K13 R2R: R2R magic in a compact desktop format
The FiiO K13 R2R builds on the success of its predecessor, the K11 R2R, and integrates a true 24-bit fully balanced resistor array DAC architecture with 192 precision resistors per channel. This discrete topology creates a warm, analog sound signature with low digital coloration and dark background noise, allowing for long listening sessions without fatigue. NOS and OS modes allow you to choose between natural non-oversampling playback or detailed oversampling processing to suit different music genres and preferences.

Extensive connections such as USB, coaxial, optical and Bluetooth 5.4 with LDAC make the K13 R2R the flexible center of a hi-fi system. The powerful headphone output with up to 2400 mW balances out demanding models, while fully balanced line outputs (XLR/RCA) drive active speakers or power amplifiers. A 10-band PEQ with precise DSP control allows sound adjustments via app or web interface, supported by low-jitter design and dual power supply (DC/AC) for minimal interference. Tests praise the organic presentation, which combines technical accuracy with musical flow – ideal for analytical listening or relaxed streaming.
The robust housing and intuitive OLED display round off the package, which processes PCM up to 1536 kHz/24 bit and DSD1024. Available in silver or black, the K13 R2R positions itself as an affordable entry into true R2R technology, which is otherwise reserved for high price ranges.
FT13: Closed over-ear with premium materials
The FiiO FT13 impresses with large 60 mm dynamic drivers with a special PU/wool nano wood fiber membrane, which ensures precise impulse reproduction and natural damping. The slightly V-shaped tuning emphasizes detailed highs, controlled bass and a surprisingly spacious stage for a closed-back design that offers up to 26 dB of passive isolation. Rare purple wood shells reduce resonance, while the magnesium headband and ergonomic pads (suede or velour) ensure long-lasting comfort.

Modular cables with 3.5 mm, 4.4 mm, 6.3 mm and XLR adapters made of Furukawa monocrystal copper allow flexible connections to sources ranging from smartphones to desktop DACs. Two pad options allow adjustments to isolation and tonality, making the FT13 versatile for critical monitoring or enjoyable listening. The Hi-Res certified design with low impedance (32 ohms) and high sensitivity (98 dB) is easy to drive without sacrificing dynamics.
Robustness and a generous accessory package including a hard case underline the premium character, which promises durability and a high-quality feel.
Availability and audiophile perfection
FiiO K13 R2R and FT13 are available in specialist stores from 319 and 329 euros respectively and are the ideal complement to a coherent hi-fi setup. The combination of R2R warmth and precise headphone technology takes music enjoyment to a new level, with a focus on naturalness and adaptability. Both products convince through plausibility in specs and real-world tests as a stable investment for audiophiles