MYFT Low Pass Filter NE5532 Subwoofer Filter, Pre AMP Pre-amplifier Board, for 2.1 Channel Subwoofer, 1Pcs
![MYFT Low Pass Filter NE5532 Subwoofer Filter, Pre AMP Pre-amplifier Board, for 2.1 Channel Subwoofer, 1Pcs](/image/88/03/65/60/12/90/6/8803656012906.webp)
This board is powered by a single power supply, can share power with power amplifier board. There is a op-amp IC port for changing op-amp easily. Full frequency signal volume potentiometer is very convenient to alter to a preamplifier for 2.1 power amplifier. LED indicator light is great for real-time monitoring of power supply status. Signal transmission is concise, signal-to-noise ratio is very high. Support single/double sound channel input, support single channel output. PCB uses super hard FR-4 glass fiber board. Frequency adjustment range is 22Hz-300Hz, and there is no human voice in this range. Low-pass only has low frequency output, which needs power amplifier board to be used.Low frequency performance effort is related to amplifier board power and speakers matching.