Douk Audio K5 PC DAC Headphone Amplifier Digital to Analog Converter with USB & Optical Input DSD256 for Amplifiers, Speakers, Mac, Computer (K5)

Brand: Douk Audio Model: K5 Audio input: USB/Fiber Optical Audio output: Optical/Stereo RCA/6.35mm & 3.5mm headphone jack Chipsets: ESS9038Q2M+SA9312 Format and sampling rate supported: USB: PCM44.1-384K/16-32bit, DSD64-256 SPDIF: PCM 44.1-192K/16-24bit, DSD64 (DOP) Frequency response: 20-40kHz(±0.3dB) Treble adjustment: 3K-20KHz / ±10dB Bass adjustment: 20-250Hz / ±10dB Pure mode: support (Tone control not valid) Matched headphone impedance: 16-600Ω RCA Output Output level: 2Vrms THD+N: <0.0007% SNR: >120dB Channel Separation: <-80dB Noise floor: <3μV (1KHz@300ohm) Headphone output GAIN Mode: High (0dB) / Low (-6dB) Output power in High Gain Mode (THD+N<1%): 560mW @32Ω (6.35mm jack output) 370mW @32Ω (3.5mm jack output) Peak voltage: 4.25Vrms@32ohm (6.35mm Jack output) 3.45Vrms@32ohm (3.5mm jack output) THD+N: <0.0008% @32Ω SNR: >121dB @32Ω Channel Separation: <-65dB @32Ω Noise floor: <3μV Working voltage: DC 5V (≥2A) Power interface: USB (type-c) / DC 5.5*2.1mm Dimensions(W*D*H): 95*92*50mm / 3.74*3.62*1.97in Package dimensions(W'D*H): 225*145*80mm/ 8.86*5.71*3.15in Net weight: 228g/0.50lb Package weight: 500g/1.10lb Packing List: 1*K5 1*Power Adapter 1*USB Cable 1*Optical Cable 1*User Manual

• Douk Audio K5 USB DAC & Headphone Amp: Featuring USB and SPDIF optical inputs, as well as optical, RCA and 6.35/3.5mm jack outputs, the K5 serves as a high-performance headphone amplifier, a USB DAC, a preamp, but also a USB to optical converter to transmit the high-quality audio from the computer to those audio devices only with SPDIF digital input such as CD players, amplifiers and active speakers etc.
• High-end Chipset and Top-level Parameters: The K5 adopts ESS9038Q2M (DAC), SA9312 (DSP), OPA1678 (LPF) and SGM8262 (amp) op-amps, and supports PCM 32bit/384kHz high-resolution decoding and DSD256 playback. Its excellent circuit design ensures superior performance with a SNR over 121dB, a low noise floor of only 3μV and an incredibly low THD of 0.0007%, K5 delivers an exceptional listening pleasure with its ultra-pure sound.
• Strong Power and High/Low Gain Modes: K5 supports dual 6.35/3.5mm headphone outputs and provides robust power of 560mW/470mW@32Ω per channel to effortlessly unleash the best performance of your headphones. Specially designed with high and low gain modes, flexibly adapt to all headphones of a wide impedance range from 16Ω to 600Ω and tailor your own listening experience.
• Tone Control with Bypass and Gain Switch: Treble and bass with midpoint positioning for perfect balance, the K5 also features a bypass function to remove all tone controls, allowing you to enjoy the purest sound by toggling the switch to PURE. The USB Type-C input can power the K5 directly with sufficient current, it also has an external power port and includes a 2-in-1 USB cable (Type-C and USB-A) for broader compatibility and optimal performance.
• User-Friendly Design for Easy Operation: Besides input, tone and gain one-click switch , the K5 also integrated the volume and power button into one to simplify the use; with colorful LED indicators, clearly show the current working mode and sampling rate; aluminum alloy body and CNC-molded, compact but durable and reliable, very suitable for those who pursue HIFI sound.