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FiiO K13 R2R 24Bit Fully Balanced R2R DAC and Headphone Amplifier
The FiiO K13 R2R is a fully balanced desktop DAC/amp built around a proprietary four-channel, 24-bit R2R resistor-array DAC. Each channel uses 48 precision thin-film resistors (0.1% tolerance, 30 ppm temp drift) for a total of 192 resistors, delivering a rich, musical presentation with a darker, lower-noise background. Dual operating modesβNOS (non-oversampling) and OS (oversampling to 384 kHz)βlet you tailor the sound, while an XMOS XU316 platform enables a 10-band PEQ you can control via the FiiO app or web interface. With a robust, fully differential amplifier stage rated at up to 2,400 mW + 2,400 mW into 32 Ξ©, the K13 R2R confidently drives IEMs and full-size headphones. Convenience features include Bluetooth 5.4 (LDAC/AAC/SBC) reception, an always-on HD LCD, dual-knob controls with IR remote, adjustable RGB logo lighting, and multiple protection systemsβall inside a thick, unibody aluminum chassis with the new βskylightβ design window.
Features
- Four-channel fully differential 24-bit R2R DAC with 48 precision resistors per channel (192 total)
- 0.1% thin-film resistors with 30 ppm temperature drift for accuracy and stability
- Fully differential signal path (DAC β LPF β volume β headphone amp) for low noise and minimal distortion
- Dual modes: NOS preserves native sampling; OS upsamples globally to 384 kHz
- PCM up to 384 kHz/32-bit and DSD256 native decoding
- 10-band high-precision PEQ (up to PCM 192 kHz/24-bit) via app or web; import/export/share EQ, Auto-EQ
- Balanced output power up to 2,400 mW + 2,400 mW (32 Ξ©)
- Three gain levels with independent volume memories for PO and PRE outputs
- Bluetooth 5.4 receiver with LDAC/AAC/SBC; wired USB input via XMOS XU316
- Preamp + power-amp output roles; desktop hub with versatile I/O
- Always-on HD LCD for sample rate, volume, gain, and output status
- Adjustable RGB logo lighting (also indicates sampling rate)
- Overheat/overload protections and 1β99 minute timer shutdown
- Unibody aluminum alloy chassis with βskylightβ window; dual-knob control and IR remote
Specifications
Digital & DAC
- DAC Topology: 4-channel fully differential 24-bit R2R resistor array
- Resistor Network: 48 thin-film resistors per channel (192 total), 0.1% tolerance, 30 ppm
- PCM Support: Up to 384 kHz/32-bit
- DSD Support: Native DSD256 (1-bit); note: lower output level is normal with DSD
- Operating Modes: NOS (non-oversampling), OS (global upsampling to 384 kHz)
- DSP/USB Platform: XMOS XU316
- PEQ: 10-band (to PCM 192 kHz/24-bit), presets, import/export/share, Auto-EQ
Amplifier
- Architecture: Fully differential (DAC β LPF β volume β amp)
- Balanced Output Power: 2,400 mW + 2,400 mW @ 32 Ξ©
- Gain Levels: 3 steps; independent volume memories for PO/PRE
- Protections: Overheating and overload; POP noise suppression; headphone protection
Connectivity
- Wireless: Bluetooth 5.4 (LDAC/AAC/SBC reception)
- Control: FiiO Control app; web PEQ (USB input, EQ enabled)
- Roles: Preamplifier & power-amplifier output modes
- Display & UI: HD LCD (always-on), dual-knob control, IR remote
- Lighting: RGB logo with brightness/colour/pulse customization
Power & Build
- Internal PSU: 30 W switching power supply with nickel-plated alloy shielding
- External DC Input: 12 V β β₯2.5 A (5.5 Γ 2.1 mm barrel)
- Power Rails: Multi-rail with up to 18 low-noise LDOs + 5 DC-DC converters
- Capacitors: ELNA RA3 silk-film & specialized audio-grade tantalum electrolytics
- Chassis: Unibody aluminum alloy with βskylightβ design
Whatβs in the Box
- K13 R2R unit, IR remote control, AC power cord, USB data cable
- Headphone adapter, quick start guide, warranty card
Physical
- Dimensions (W Γ D Γ H): β mm
- Weight: β kg
Product Details
- FiiO K13 R2R
-
Brand New : Factory Sealed
- EAN : 6953175710844
- EFLC : 15246
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Warranty
One Year Warranty
- Parts and Labour Warranty
- Canada-wide Coverage
- FiiO Authorized
Returns
Easy Returns
- 14-day return window on eligible items
- Full refund issued in accordance with our return policy
About FiiO
FiiO focuses on personal audio built for everyday listening, with a lineup that can include headphones, earbuds, portable DACs, and digital audio gear designed for clean sound and easy use. Whether you're listening at home, at work, or on the go, these products are made for practical comfort, reliable connectivity, and solid performance. We've been carrying FiiO since 2014.
Explore our current FiiO selection and best sellers. We offer both new and open-box items, and everything is clearly marked. Popular categories include Portable DACs & Headphone Amps, Headphone Cables, Full Size Headphones.
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