Bass tone circuit diagram for amplifier :
This is the Bass tone circuit diagram for an amplifier. Every amplifier needs this type of board to control the sound quality. This board is one of the best circuits. Here, use the 4558 IC. This board has four adjustable volumes: bass, mid-range, treble, and volume. This board needs Ac 15-0-15.


Preamplifier circuit with graphic equalizer:
This is the Preamplifier circuit with a graphic equalizer for the amplifier. This diagram runs on 12 volts. It’s a stereo diagram. Treble, midrange, and bass can be controlled using this board. Every amplifier needs this type of circuit to control the sound quality.

Amplifier circuit diagram is here
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