[🎶SG] FIIO K11 R2R Desktop DAC and Headphone Amplifier

(>‿◠)✌     SAM AUDIO
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FIIO K11 R2R
Desktop DAC and Headphone Amplifier

Fully differential true 24Bit R2R DAC Resistor Arrays
NOS/OS dual modes
High-quality electronic volume control NJW1195A
1300mW+1300mW high output power
3 gain levels, 3 volume curves
Specially-designed audio circuit
Specially-designed power supply
High-quality Beryl solid capacitors
Custom LCD screen
RGB logo lighting

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Descriptions:

> FULLY DIFFERENTIAL - TRUE 24BIT R2R DAC RESISTOR ARRAYS
> FIIO’s newly self-developed four-channel fully differential 24bit R2R DAC consists of 2x 48 precision thin-film resistor arrays per channel, totalling 192 resistors with 0.1% tolerance and low temperature drift (30ppm). This configuration delivers a unique and charming sound.

> COMPARISON BETWEEN FULLY DIFFERENTIAL AND TYPICAL ARCHITECTURES
> The K11 R2R employs a fully differential architecture, resulting in lower noise, with less FFT harmonics and a darker music background compared to typical ones.

> DUAL NOS/OS MODES - DOUBLE THE FUN
> 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: Upsamples globally to a high sampling rate of 384kHz, for superior audio performance and even more refined, clear sound.

> TRUE 24BIT DECODING - EXCELLENT CAPABILITIES, OUTSTANDING SOUND QUALITY
> Support for PCM 384kHz/24bit and DSD256 decoding, means the K11 R2R can easily handle high-precision audio signals and fully exhibit the details within, providing you with an excellent audio experience.

> * DSD256 requires setting the DSD output mode to Native on the source device, internally converting to PCM before being decoded by the R2R resistor arrays.

> NJW1195A HIGH-QUALITY ELECTRONIC VOLUME CONTROL
> The NJW1195A is a 4-channel electronic volume controller. This resistor ladder electronic potentiometer is low distortion and low noise, allowing precise volume adjustment.

> 3 GAIN LEVELS - 3 INDEPENDENT VOLUME CURVES

> The 3 independent gain levels and volume curves allow the K11 R2R to give you a better listening experience with various types of headphones, whether you are using sensitive earphones or harder-to-drive over-ear headphones.

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Specifications:

> Main control chip (single-chip microcomputer): GD32F303RET6
> DAC: Fully differential true 24bit R2R resistor arrays
> Volume control chip: NJW1195A
> USB input decoding: 384kHz/32bit, DSD256
> Coaxial input decoding: 192kHz/24bit
> Optical input decoding: 96kHz/24bit
> USB connector: Type-C
> Display: Custom LCD screen
> Dimensions: 147x133x32.3mm (including feet)
> Weight: About 420g
> Power supply: DC12V 2A external adapter
> SE power output 1: L+R≥460mW +460mW (32Ω, THD+N＜1%) (32Ω/single-ended/high gain)
> SE power output 2: L+R≥50mW+50mW (300Ω, THD+N＜1%) (300Ω/Single-ended/High gain)
> BAL power output 1: L+R≥1300mW+1300mW (32Ω, THD+N＜1%) (32Ω/Balanced/High gain)
> BAL power output 2: L+R≥220mW+220mW (300Ω, THD+N＜1%) (300Ω/Balanced/High gain)
> Frequency response: 20Hz~50kHz: attenuation＜1.3dB
> SNR: ≥115dB (A-weighted)
> Noise floor: PO＜7.2uV (A-weighted); BAL＜14.1uV (A-weighted)
> Output impedance: PO＜1Ω (32Ω load); BAL＜1.5Ω (32Ω load)
> THD+N: LO＜0.02% (1kHz/10kΩ)

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