Subwoofer Filter Circuit Op-amp Low Pass Frequency

This subwoofer low pass filter frequency schematic diagram for filter circuit particularly low frequency amplifier or microphone to be adopted.

This low pass filter for subwoofer circuit uses operational amplifier LF347 IC number, complete the circuit filters the low frequencies and changes, it makes the sound, just go lower in frequency, not to exceed 100 Hz frequency level By’ve Switch selection can.

This circuit should choose high quality equipment, because to reduce noise. The detail is other see in the diagram.