FiiO K11 R2R Resistor Network Desktop DAC Headphone Amplifier DSD Decoder Integrated Headphone Power Amplifier HiFi Decoder Compatible with PS5 Switch Black
CNÂ¥1,099.00
SKU: 100170051551
Status:Out of Stock
ID: 100170051551
Weight: 975.00 g
Dims:244x195x62 mm
Specifications
Category
Amplifier
Variants / Sale Attributes
Color: black
Package Contents
1. K11 R2R main unit *1
2. Power cord *1
3. Power adapter *1
4. USB data cable *1
5. Headphone adapter *1
6. Quick start guide *1
7. After-sales service card *1
Each channel contains 48 precision thin-film resistors (0.1% accuracy, 30ppm low temperature drift), total 192 resistors
Fully differential complementary architecture reduces noise and harmonic distortion compared to non-complementary designs
Supports PCM up to 384kHz/24Bit and DSD256 decoding (DSD256 requires native DSD output mode from source, internally converted to PCM for R2R decoding)
Additional details
Dual decoding modes
NOS (Non-oversampling) mode preserves original sampling rate for pure sound; OS (Oversampling) mode upsamples to 384kHz for enhanced audio detail and clarity
Three gain settings with three independent volume curves to optimize listening experience for various headphones and earphones
Professional audio amplifier circuit with independent left and right channel headphone amplifiers
Low-pass filtering and volume control via FPGA and R2R DAC, followed by TIOPA1642 operational amplifiers and SGM8262 op-amps for phase inversion and amplification
Single-ended and balanced analog outputs (4.4mm balanced, 6.35mm single-ended)
Headphone protection circuit and pop noise elimination system for reliability and safety
NJW1195A professional 4-channel electronic volume control chip with resistor ladder electronic potentiometer for low distortion and noise
Precise volume adjustment with three gain levels and independent volume curves
Professional multi-rail power system with 17 low-noise LDO precision regulators and 2 DC-DC converters
Additional details
Provides multiple voltage rails
-9V, 8V, ±7.5V, ±6V, 5.4V, 3.3V, 1.8V, 1.2V
External custom 12V switching power supply ensures clean and stable power
High-efficiency DC-DC converters and high ripple suppression LDOs for analog and digital circuits
High-quality low ESR sapphire solid capacitors for stable and pure power delivery
Custom high-contrast, long-life LCD screen showing sampling rate, volume, gain, output mode, and other status information
Multi-function rotary knob integrates power on/off, menu navigation, and volume control
Quick double-click on knob switches between PO (headphone), PRE (preamp), and LO (line out) modes with independent volume memory for each
Global adjustable RGB logo ambient lighting with six side-emitting LEDs, light reflection cavity, and mirror reflective film for uniform illumination
RGB lighting modes include audio-follow, red, blue, cyan, purple, yellow, white, green, and cycle
Adjustable brightness (off to 5 levels) and breathing effect controlled via rotary knob
RCA connectors with metal clamps for secure and durable connections
Upgraded headphone amplifier heat dissipation using thermal silicone and aluminum alloy heat sinks
Dedicated phosphor bronze metal shielding cover with passivation treatment for corrosion resistance and anti-oxidation, ensuring stable signal transmission
DC protection circuit to prevent damage to headphones from abnormal DC output
Intelligent power saving mode activates low power state after long periods of no audio input to reduce heat and power consumption
FPGA-based digital audio bridge with serial-to-parallel data conversion
Supports NOS/OS dual mode (all to PCM)
Professional audio pre-processing including low-pass filtering, volume and gain control
High-quality components and advanced circuit design for superior HiFi audio performance
Product images are for reference only; actual product may vary.
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