A very simple tone control circuit project can be designed using the KA2107 integrated circuit manufactured by Samsung Electronics . As you can see in circuit diagram the KA2107 tone control circuit project is designed for stereo application and it has some additional functions like volume control and balance control between channels . Adjusting the 10k potentiometers (bass and tremble) you will modify the high and low output signal frequency .
A very simple 20 watt amplifier circuit can be designed using the TA7280P, TA7281P dual audio power amplifier IC designed for consumer applications.
This 20 watt amplifier circuit is designed for low distortion and low noise audio applications .
