FiiO K11 R2R OPEN BOX

$206.99

~~$229.99~~ $206.99

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Authentic Fiio

Color: Silver

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FiiO K11 R2R DAC Headphone amp,

OPEN BOX, Very Good condition, complete, full warranty.

Featuring some handy new features like:

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

Custom High Performance R2R DAC

FIIO’s newly self-developed R2R DAC consists of 2 x 48 precision thin-film resistor arrays per channel, totaling 192 resistors. This custom designed configuration delivers a unique and charming sound that is so sought after recently.

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

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. This tends to be the warmer, smoother of the two, the mode most people are interested in when choosing the R2R dac in the first place.

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 with Low / 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 of high output power, combined with 3 gain levels for ease of use. Choose from SE 6.35mm jack or BAL 4.4mm jack to easily match the cables and headphones you own.

FiiO K11 R2R Technical Specifications:

Category	Specification	Details
Audio Architecture	DAC Topology	24-Bit Discrete R2R Resistor Array
	Decoding Modes	OS (Oversampling) & NOS (Non-Oversampling)
	Hi-Res Support	USB: 384kHz/32-Bit, DSD256
	Performance	SNR: 115dB / THD+N: 0.025%
Amplification Power	Balanced Output	1300mW @ 32Ω / 220mW @ 300Ω
	Single-Ended Output	405mW @ 32Ω / 45mW @ 300Ω
	Output Impedance	Balanced: 1.5Ω / Single-Ended: 1Ω
	Gain Control	3-Step Hardware Gain (L / M / H)
	Rated Impedance	Balanced: 8–350Ω / Single-Ended: 8–150Ω
Connectivity	Digital Inputs	USB-C, Coaxial, Optical
	Analog Line Out	Dual RCA (L/R)
	Headphone Outs	4.4mm Balanced / 6.35mm Single-Ended
	Crosstalk	Balanced: 107dB / Single-Ended: 72dB
Physical & Power	Display	Custom Segmented OLED
	Power Supply	External 12V / 2A
	Dimensions	15.0 x 13.3 x 3.2 cm
	Weight	420g