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FiiO K11 R2R (Desktop Decoder Headphone Power Amplifier) Hong Kong Version

FiiO K11 R2R (Desktop Decoder Headphone Power Amplifier) Hong Kong Version

1. Fully Differential Complementary 24-Bit R2R Resistor Array
2. NOS/OS Dual Mode Switching
3. Professional Electronic Volume Control Chip NJW1195A
4. Powerful 1300mW + 1300mW Output Power
5. Three Gain Levels, Three Independent Volume Curves
6. Professional Audio Amplification Circuitry

HK$1,299.00
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【Red (Limited Edition) ~ New Color Limited Release ~ Only 10 Units Available in Hong Kong】【R2R ● R2R ● R2R ~ FiiO's First Desktop Decoder Headphone Power Amplifier ~ FiiO K11 R2R】FiiO K11 R2R (Desktop Decoder Headphone Power Amplifier) Hong Kong VersionColors: Black, Silver, or Red (Limited Edition)Suggested Retail Price: HK$1299Features:1. Fully Differential Complementary 24-Bit R2R Resistor Array2. NOS/OS Dual Mode Switching3. Professional Electronic Volume Control Chip NJW1195A4. Powerful 1300mW + 1300mW Output Power5. Three Gain Levels, Three Independent Volume Curves6. Professional Audio Amplification Circuitry7. Professional Power Supply System8. High-Quality Emerald Solid Capacitors9. Custom LCD Screen10. Full RGB Logo Light=====================1. Fully Differential Complementary ~ 24-Bit R2R Resistor Array DACFiiO's newly developed four-channel fully differential complementary 24-bit R2R resistor array DAC consists of 48 resistors per channel, totaling 192 precision thin-film resistors with 0.1% accuracy and low temperature drift (30ppm), delivering a uniquely nuanced sound quality.Comparison of Complementary and Non-Complementary ArchitecturesThe K11 R2R uses a complementary architecture, resulting in lower noise, fewer FFT harmonic components, and a darker musical background compared to a non-complementary architecture.2. Dual Enjoyment ~ NOS/OS Dual ModesNOS No Oversampling Mode: Maintains the original sampling rate for decoding, preserving the original sound quality and allowing you to enjoy a pure and moving musical feast. OS Oversampling Mode: Upsamples the entire frequency range to a high sampling rate of 384kHz, resulting in superior audio performance and a more delicate and clear sound quality.3. True 24-Bit Decoding ~ Outstanding Capabilities and Superior Sound QualitySupports PCM 384kHz/24-bit and DSD256* decoding, easily handling high-precision audio signals, revealing rich sound details, and bringing you an exceptional audio experience. *DSD256 requires the front-end audio source's DSD output mode to be set to Native, internally converting it to PCM for R2R resistor array decoding.4. NJW1195A ~ Professional Volume Control ChipThe NJW1195A is a 4-channel electronic volume controller using a trapezoidal potentiometer, featuring low distortion and low noise for precise volume adjustment.5. Three Gain Levels ~ Three Independent Volume CurvesNot only does it enhance the listening experience of headphones with different impedances, but it also further adapts to various earphones or over-ear headphones.6. Professional Audio Amplification CircuitThe audio signal is transmitted to the digital audio bridge via the USB interface processor. After processing by the FPGA, it is sent to the R2R DAC for decoding, resulting in four-channel output. The signal is then low-pass filtered by a TI OPA1642 professional op-amp, converting it into a single-ended analog signal. This signal is then transmitted to the NJW1195A electronic volume control chip for precise volume adjustment. The final stage uses two SGM8262 professional op-amps for phase inversion and amplification, ultimately outputting single-ended and balanced analog signals. The audio circuit incorporates gain control, professional headphone protection circuitry, and a pop noise cancellation system to ensure the professionalism and reliability of the entire audio circuit.7. Professional Power Supply SystemUtilizing up to 17 low-noise LDO precision voltage regulator ICs and 2 DC-DC converters, it provides multiple professional power supplies: -9V, 8V, ±7.5V, ±6V, 5.4V, 3.3V, 1.8V, and 1.2V. Combined with an external custom 12V switching power supply, it ensures power purity and provides stronger power support for audio output.8. High-Quality Emerald Solid CapacitorsUltra-low ESR and excellent anti-interference capabilities provide stable and clean power for high-quality HiFi sound.9. Powerful Driving Force, Exquisite DetailWith a 32Ω load, the K11 R2R's balanced output power reaches 1300mW + 1300mW. This powerful driving force can easily drive your HiFi earphones and headphones, reproducing richer audio details.10. **Screen Power, Clearer View** A meticulously crafted high-contrast, long-life HD LCD screen* provides a clearer display of the device's current status, including sampling rate, volume, gain, and output mode, all at a glance. *Long-life LCD screen, always on without burn-in.11. **One Knob, All-in-One Functionality** The multi-functional knob integrates power on/off, menu operation, and volume adjustment. Rotating or pressing the knob allows for quick setup of various complex functions. Furthermore, double-pressing the knob on the main interface quickly switches between PO/PRE (LO SE)/LO*, facilitating switching between headphone and speaker systems. *Independent volume memory for PO/PRE/LO, eliminating the need to readjust volume when switching between them. Rotary knob: Multiple functions1. Click the knob: Input mode switching, menu confirmation.2. Double-click the knob: Quickly switch between PO/PRE (LO SE)/LO.12. Fully Adjustable ~ RGB LOGO Ambient LightIntegrating RGB ambient lighting into the FIIO LOGO, using six carefully selected side-emitting LEDs, a light-reflecting cavity, and a mirrored reflective film, avoids dark areas and ensures uniform lighting. The dynamic, technologically advanced ambient lighting also allows you to quickly understand the sampling rate of different tracks. * Adjustable brightness, color, and breathing mode via knob.RGB-M: RGB Status Settings0/1/2/3/4/5/6/7/8 represent: Follow Audio, Red, Blue, Cyan, Purple, Yellow, White, Green, and Loop, respectively.RGB-P: RGB Breathing ModeY: RGB BreathingN: RGB Constant OnRGB-b: RGB Brightness0/1/2/3/4/5 represent: Off/Level 1/Level 2/Level 3/Level 4/Level 5 Brightness, respectively.13. Safe and Reliable, with Ingenious FeaturesRCA Metal Clamping Plate ~ Reinforced fixation, reliable connection, and durability.Upgraded Headphone Amplifier Cooling ~ The reliable combination of thermally conductive silicone and an aluminum alloy heatsink ensures rapid heat dissipation from the headphone amplifier.Dedicated Phosphor Bronze Metal Shield ~ The shield undergoes a passivation process, providing corrosion and oxidation resistance, effectively resisting external interference, and ensuring reliable and stable signal transmission.DC Protection ~ Prevents damage to the headphones from abnormal DC output, ensuring safer use.Intelligent Power Saving ~ When the device detects prolonged periods without audio input, the system automatically enters a low-power state, saving power and preventing overheating.Package Contents:① K11 R2R Main Unit *1② Power Adapter *1③ Power Cord *1④ USB Data Cable *1⑤ Headphone Adapter *1⑥ Quick Start Guide *1⑦ After-sales Service Card *1Basic Specifications:Colors: Black, Silver, Red (Limited Edition)Main Control Chip (Microcontroller): GD32F303RET6DAC Module: Fully Differential Complementary True 24-Bit R2R Resistor ArrayVolume Control Chip: NJW1195AUSB Input Specifications: 384kHz/32bit, DSD256Coaxial Input Specifications: 192kHz/24bitOptical Input Specifications: 96kHz/24bitUSB Type: Type-CScreen: Custom LCD DisplayDimensions: 147x133x32.3mm (including feet)Weight: Approx. 420gPower Supply: External Adapter DC12V 2A Single-ended output power 1: L+R≥460mW +460mW (32Ω, THD+N＜1%) (32Ω/Single-ended/High Gain) Single-ended output power 2: L+R≥50mW +50mW (300Ω, THD+N＜1%) (300Ω/Single-ended/High Gain) Balanced output power 1: L+R≥1300mW +1300mW (32Ω, THD+N＜1%) (32Ω/Balanced/High Gain) Balanced output power 2: L+R≥220mW +220mW (300Ω, THD+N＜1%) (300Ω/Balanced/High Gain) Frequency response: 20Hz~50kHz: Attenuation <1.3dB Signal-to-noise ratio: ≥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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  • Thailand - $180
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  • China - $60
  • UK- $780
  • Japan - $250
  • Taiwan-$100
  • Austalia/New Zealand-$380
  • Canada-$780
  • Malaysia & Singapore-$250
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