1-Year Local Warranty. 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 1. 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. 2. 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. 3. 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. 4. 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. 5. 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. H: High gain volume curve M: Medium gain volume curve L: Low gain volume curve Parts list K11 R2R*1 Power adapter*1 Power cable*1 USB data cable*1 Headphone adapter*1 Quick start guide*1 Warranty card*1 Basic specifications Colours: Black, Silver, Red (planned for later production) 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) More information is available on FiiO official website.
