• With multiple audio inputs and outputs: support Bluetooth / PC-USB / coaxial / optical inputs, compatible with most digital audio sources such as phone, tablet, computer, TV, digital player etc. With stereo RCA / XLR and 6.35mm / 4.4mm headphone jack outputs, greatly improve the sound quality for amplifier / active speaker / headphones, HiFi music also can be enjoyed at home.
• High-end materials and unique structure are adopted to ensure better performance:
  CSR8675 Bluetooth chip, supports ACC/SBC/APTX/APTX-HD/LDAC, achieves further distance and 24bit/96Khz lossless signal transmission without delay.
  XMOS HU400 USB chip with special driver, support 32Bit/768Khz transmission and DSD512 playback.
  ESS9038 independent DAC chip, with richer audio details, larger dynamic range, lower distortion and higher resolution.
  Classic headphone amp architecture (2*TPA6120A2), provide larger output power(up to 2W) enough to drive 16-600Ω headphones.
  
• Multifunctional with excellent design: not only a Bluetooth receiver, an audio decoder, a headphone amp, but also a preamp to satisfy different requirements; with large OLED display to show all working status clearly, and supports remote control to achieve all settings easily.
• Attractive looking and complete accesories: custmoized grey aluminum alloy case, CNC machined with laser engraving, looks solid and luxury. Comes with 1×USB cable, 1×Optical cable, 1×6.35mm to 3.5mm adapter, no need for extra purcahse, very suitable for the audiophiles who pursue HiFi sound in limited space.

• Chip architecture: CSR8675 (Bluetooth chip) + XMOS HU400 (USB chip) +ESS9038 (DAC chip)
• Audio input: Bluetooth / PC-USB / Coaxial / Optical
• Audio output: Stereo RCA / XLR / 6.35mm & 4.4mm headphone jack
• Bluetooth version: 5.0 (support APTX /APTX-HD / LDAC)
• Sampling rate supported:
  PC-USB: PCM 768KHz / 32bit DSD512 Coaxial / Optical: 192KHz / 24bit
  PC-USB operation system supported: W7/W8/W10/MAC/Linux
• Frequency response: 10Hz-40KHz (±0.2dB)
• THD: <0.0003%
• S/N ratio: ≥118dB
• Output level: 2.4V (RCA) / 4.8V (XLR)
• Matched headphone impedance: 16-600Ω
• Headphone output power: 2W (4.4mm) / 520mW (6.35mm)
  
• Working voltage: DC 12V
• Dimensions(W*D*H): 167*128*42mm / 6.57*4.96*1.65in
• Package dimensions(W*D*H): 310*240*70mm / 12.20*9.45*2.76in
• Net weight: 620g / 1.37lb
• Package weight: 1.1kg / 2.43lb

User Manual of Douk Audio H6