US $1.13
Product description
This sounding board is a passive sounding board. Its main function is to adjust the volume of the input audio signal, and then send it to the power amplifier board for amplification.
The principle of the product is to filter the audio signal directly through the resistance-capacitor element to get the desired high and low frequency. The tone board does not need power supply, but the volume will be much smaller after processing.
The main parameters
Product Name: Passive Tone Board
Adjustable items: total volume bass treble
Number of channels: 2 channels
Knob spacing: 22.5MM
Socket Type: 2.54-3P
Appearance size: 56*28MM
Product weight: 25 g
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