FiiO K13 R2R: Fully equipped DAC and headphone amplifier

The FiiO K13 R2R is a newly released desktop DAC and headphone amplifier that features a fully balanced architecture utilizing proprietary 24-bit R2R resistor matrices.

This device merges the functionalities of the traditional NOS/OS mode, Bluetooth compatibility with the LDAC codec, a robust balanced output, and sophisticated settings. The end-to-end balanced circuit—from the DAC to the amplifier—ensures minimal distortion and sound stability, while the integrated 10-band PEQ enables flexible adjustments tailored to personal preferences.

The device operates on four channels of resistor arrays, with 48 thin-film resistors per channel, totaling 192 elements with a selection accuracy of up to 0.1%. This configuration results in a genuinely discrete R2R DAC, designed for clean and natural signal transmission. For user convenience, control is available through the FiiO Control application or web interface, in addition to a proprietary LCD display that provides constant indication.

The power unit features a dual power supply—an internal shielded module along with the option to connect an external DC unit. It employs low-noise stabilizers, tantalum, and audiophile-grade ELNA RA3 capacitors, ensuring stability and a sufficient power reserve. The output power reaches 2400 mW per channel at a 32-ohm load, enabling effective operation with both high-impedance headphones and sensitive in-ear models.

FiiO K13 R2R Specifications :

• Fully balanced 24-bit R2R DAC / 192 thin film resistors
• Two operating modes: NOS and OS
• Supports PCM up to 384kHz/24bit and DSD256
• Bluetooth 5.4 with LDAC/AAC/SBC codecs
• Balanced output 2400mW+2400mW at 32 Ohm
• 10-band PEQ with app and web interface control
• Balanced amplifier circuit with overload protection
• Inputs and outputs: XLR/RCA (line/preamplifier)
• Dual power supply: built-in shielded module and external DC input
• ELNA RA3 capacitors and specialized tantalum elements
• LCD display with constant indication function
• Adjustable RGB lighting / auto power off function

Price: $999

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