[Pre-Sale] Douk Audio VOL-4 Stereo Volume Controller with Remote

Upgrade Your HiFi Volume Control: Keep the HiFi system you already enjoy while adding convenient remote volume control. VOL-4 is ideal for fixed-output DACs and streamers, or systems where volume controls are missing or hard to reach—without replacing the rest of your setup.

More From One Remote: Control volume, tone, power and mute directly from your listening position. Dedicated buttons keep everyday adjustments within easy reach, while one-touch mute handles calls or conversations without changing your preferred volume setting.  

See Every Setting as You Tune: Set volume from 0–99 with clear OLED feedback for every adjustment, making familiar settings easy to revisit. Bass and treble each offer ±9 dB of tuning range, giving you room to shape tonal balance around different music, speakers and listening preferences.  

Keep Your HiFi Signal Clean: VOL-4 adds easier volume control without making signal quality an afterthought. SNR ≥115 dB and THD+N 0.001% maintain very low noise and distortion, while closely matched L/R output adds confidence in consistent stereo performance. 

Built to Fit Your System: Connect VOL-4 between common RCA line-level sources and power amps or active speakers, while Bypass sends the RCA signal directly through when powered but switched off. The GND terminal gives short turntable ground leads a closer grounding point, and 5V USB-C keeps setup and placement flexible.  

Q: Why is there still sound after VOL-4 is turned off, and why is it louder?
A: This is normal. When powered but switched off, VOL-4 passes the RCA signal through at full volume, bypassing volume and tone controls. Lower source or downstream volume before switching on/off.

Q: What is the GND terminal used for?
A: If your turntable ground lead is too short, VOL-4 can act as an intermediate grounding point between the turntable and your amplifier or phono preamp, giving you more flexibility in equipment placement.

Q: Why doesn’t the remote control include batteries?
A: The remote requires 2 × AAA batteries, which are not included. Please prepare them separately before use.

Parameters

• Brand: Douk Audio
  
• Model: VOL-4
  
• Audio Input: Stereo RCA
  
• Audio Output: Stereo RCA
  
• THD+N: 0.001%
  
• SNR: ≥115 dB
  
• Frequency Response: 20 Hz–20 kHz (±0.1 dB)
  
• Input Sensitivity: 2 V
  
• Input Impedance: 47 kΩ
  
• Output Impedance: 10 kΩ
  
• Maximum Output Level: 2 V
  
• Volume Range: 0–99
  
• Bass/Treble Adjustment: ±9 dB
  
• Power Input: USB-C, DC 5V / ＞1A
  
• Dimensions (W × D × H): 95 × 70 × 30 mm / 3.74 × 2.76 × 1.18 in
• Net Weight: 204 g / 0.45 lb
• Package Weight: 420 g / 0.93 lb

Packing List

• 1 × VOL-4
• 1 × Remote Control (Without Batteries)
• 1 × DC 5V Power Adapter
• 1 × USB Cable
• 1 × User Manual