Sell HIFI Amplifier Passive Tone Board Treble Bass Volume Control Preamp Board best price

Features: This item is passive tone board, the main function of the input audio signal for high and low tone section, and then sent to the amplifier board to zoom. The principle of the product is the audio signal through the limiting element directly through the filter to get the desired high and low tone, tone board does not require power, but the volume will be processed a lot smaller. Specifications: Type: Passive Tone Board Adjustable Item: Total, Volume, Tweeter Number of channels: Two channels Knob spacing: 22.5MM Socket type: 2.54-3P Appearance size: 56*28MM Include: 1 x Passive Tone Board