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Active LPF for subwoofer on LM358
I urgently needed an active low-pass filter for a subwoofer with cutoff control. The main requirements were simplicity, availability of parts, and unipolar power supply. Google refused to help with this, and out of desperation, I had to come up with an active low-pass filter circuit for a subwoofer on the LM358, as one of the most affordable op-amp chips. Perhaps there are errors in the circuit, but as time has shown, it works great for all its simplicity. I’ll tell you about the problems that I encountered during assembly, their solution, and in general, a little about the low-pass filter circuit for the subwoofer itself.
PS. Unfortunately, I am temporarily unable to send a fully assembled set. There is a factory PCB option on SMD with a soldered LM358. The rest of the details are on the way.
Amplifier test on TDA1562Q - • Усилитель на TDA1562Q ...
Download software and diagram -cloud.mail.ru/public/9Uie/3mr...
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