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FiiO

FiiO K13 R2R Desktop DAC Headphone Amplifier

SKU CH-RE60-ZZQ81

A desktop DAC and headphone amplifier using a four-channel 24-bit R-2R resistor array with dual NOS and oversampling modes, Bluetooth 5.4, USB-C, optical, coaxial, XLR, dual RCA.

  • Product colorBlack

Color Black

  • Four-channel R-2R DAC with 192 precision resistors for natural analog sound
  • Dual NOS and oversampling modes up to 384 kHz for flexible tuning
  • Fully balanced chain delivers 2400 mW per channel into 32 ohm loads
  • USB-C, optical, coaxial and Bluetooth 5.4 inputs plus XLR and dual RCA outputs
  • Low, medium and high gain settings match amplifier output to any headphones

FiiO K13 R2R Desktop DAC

The FiiO K13 R2R is a desktop DAC and headphone amplifier that uses a four-channel fully differential 24-bit R-2R resistor array with 192 precision resistors. It delivers up to 2400 mW + 2400 mW into 32 ohm loads and supports PCM up to 384 kHz / 32-bit plus DSD256 native decoding.

Connectivity and Gain Flexibility

Digital inputs include USB-C, optical, coaxial and Bluetooth 5.4 with LDAC, AAC and SBC codecs. Analog outputs provide XLR balanced and dual RCA single-ended line-level connections. Three gain settings allow the amplifier to match a wide range of headphone sensitivities and impedances.

R-2R Resistor Ladder Architecture

The custom 24-bit R-2R ladder with 192 resistors replaces a conventional delta-sigma chip, producing a warmer and more natural analog presentation. Dual NOS and OS modes let the listener choose between native sampling and 384 kHz oversampling for different tonal preferences.

How it compares

Measured against everything we stock in Pro Audio Equipment, at today’s prices. Recalculated every night.

Price $614.99
Pricier than about 91% of the 613 comparable items (median $56.99).

Specifications

Product
Brand nameFiiO
Model nameK13 R2R
Product colorBlack

Other versions of this model

1 more in the same range

Questions about this item

How do I verify the K13 R2R is processing audio correctly after connecting it?

The front-panel indicator shows the active input and sample rate; sound should be audible from both the 1/4" and 4.4 mm headphone outputs at the selected gain.

Which cables and accessories are included with the K13 R2R and what must I provide?

The package contains the DAC/amp unit and a USB-C cable; optical, coaxial, XLR, RCA and Bluetooth sources use your own cables or wireless pairing.

Which gain setting should I choose for my headphones on the K13 R2R?

Use low gain for sensitive IEMs, medium for typical portable headphones, and high gain for demanding full-size models that need up to 2400 mW per channel.

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