FiiO K11 R2R Dac

$229.99

Sale Sold out

Free Shipping $99+
30 Day Returns
Authentic Fiio

Color: Black

Quantity

FiiO K11 R2R DAC Headphone amp, perfect to enjoy FiiO's clever new fully differential, true 24-bit R2R DAC technology for desktop audio from a computer.

A fantastic desktop DAC / Amp - compact, affordable, powerful, sleek build, plenty of adjustments and with 6.35mm & BAL 4.4mm outputs it makes a great match with a huge variety of headphones!

Featuring some fun, new features like:

multicolour, dimmable RGB top logo lighting
white LCD readout
multifunction volume dial controller
screen confirmation of file bitrate

Custom R2R DAC Performs

FIIO’s newly self-developed four-channel fully differential 24bit R2R DAC consists of 2 x 48 precision thin-film resistor arrays per channel, totaling 192 resistors. This configuration delivers a unique and charming sound.

FiiO K11 R2R employs a fully differential architecture, resulting in lower noise, with fewer FFT harmonics and a cleaner music background compared to some designs. K11 R2R easily decodes lossless CD quality and even high res files.

FiiO K11 R2R comes with dual modes of NOS and OS. Double the fun with different modes that provide some tuning variety for the listener.

NOS (Non-Oversampling) Mode: Maintains the original sampling rate for decoding, preserving authentic sound and allowing you to enjoy an organic and captivating musical experience.

OS (Oversampling) Mode: Up-samples music files to a high sampling rate of 384kHz, for superior audio performance and even more refined, clearer sound quality.

In the K11 R2R, the audio signal is transmitted via a USB interface processor to an FPGA, then sent to the R2R DAC for 4-channel output after decoding. Then, it passes through two Ti OPA1642 op-amps for low-pass filtering.

K11 R2R | High Quality Headphone Amp:

The output stage uses two SGM8262 op-amps for 4-way phase inversion and amplification, resulting in outputs of singed-ended and balanced analog signals. The audio circuit features L/Med/High gain controls, making it easy to match the K11 R2R to a wide variety of IEM's and over ear headphones.

Headphone output is powerful, with up to 1300mW+1300mW high output power, combined with 3 gain levels and 3 volume curves for ease of use. Choose from SE 6.35mm jack or BAL 4.4mm jack to easily match the cables and headphones you own.

Reviews: Darko.audio, July 2025

DARKO Knockout Award!

'A very special DAC for very little money'

Suggestion: For an ideal headphone to match, try the FiiO FT1 Pro!

FiiO K11 R2R Tech Specs: