Subwoofer amplifier circuit

Subwoofer amplifier circuit:

This is the Subwoofer amplifier circuit diagram. this circuit is for the bass amplifier. when we want to make a sub amplifier then we need this circuit to make only bass. this circuit is used as a pre-amplifier. it’s made only of bass. low part only. here used 4558d ic. needs 12-0-12 voltage for this circuit. negative positive and ground voltage.

it’s an easy circuit diagram. 

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