You who like the treble may like this circuit. it is Treble Booster circuit help give the sound of music that you listens to bright go up. Besides it still build easy. The price is inexpensive with. Because of use IC 741 that excellent like again. instruction easiness press switch , as a result make the sound improves to follow want. And you can change the equipment has in the circuit with. See the detail can add sir.
circuit Treble Booster By 741