Subwoofer amplifier PCB layout

Subwoofer amplifier PCB layout:

This is the Subwoofer amplifier PCB layout using a lowpass filter. This circuit is only an amplifier for a subwoofer speaker. to make bass, you need a lowpass filter. Without the lowpass filter, it’s just a simple amplifier. Here in this post, we can get a lowpass filter circuit diagram. This circuit runs using 9-voltage to 18-voltage. single voltage needs. no need for dual voltage.

Lowpass filter to make bass Lowpass filter 

This is the Speaker protection circuit diagram. It can protect our Speaker from the burn. If the amplifier has any problems, this circuit can save our soundbox. Normally, when the transistor makes a short circuit, the voltage comes out from the speaker output line, and this circuit protects that voltage. This circuit should not allow direct voltage to be sent to the speaker. This circuit is essential for protecting the speaker.

The circuit diagram is 

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Transistor circuit for amplifier

Build a Transformer or construct the transformer. Home Theater Circuit Diagram 5.1

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