Product description：
1. External power amplifier rear passive speakers left and right sound channel double knob independent volume adjustment control box
2. Each channel supports 150 watts of processing power
3. Independent control of stereo channel (Left track and right track)
4. Volume control knob, clean, smooth volume adjustment can be achieved.
5. Input/output：Use screw type connector terminals
6. Simple for operating, after the left and right sound channel of the amplifier is connected respectively in volume control box, the output of the left and right sound box realizes volume to adjust the volume size of the left and right sound box respectively.
7. Desktop type power amplifier output passive speaker volume control box, it can easily control the volume of the sound channel of the passive sound box, easy for installation, just plug it in and use it.
8. There is a separate volume knob switch, metal construction, brief outward and Compact Size.

Product parameters：
1. Power processing: Each audio/speaker channel 150 watts
2. Support soundtrack: Stereo left and right channels
3. Support impedance: 4-16ohm
4. Speaker cable support: 14 wire gauge（14 AWG）
5. Support interface: Input/Output, using screw type connector terminals
6. Volume adjustment: Left and right sound channel independent volume size adjustment
7. Net Weight: 0.7 kg
8. Packed weight: 0.8kg
9. Product size: Length 150mm x Width 68mm x Height 55mm
10. Package size: Length 185mm x Width 135mm x Height 65mm
11. Kit list: Passive loudspeaker volume control box x 1