3 band equalizer circuit

Posted on Feb 4, 2014

This is a circuit for a tone control using 3 band equalizers. This circuit is based on single chip op amps LF351. This circuit having three ranges, bass, middle and treble controls. This is the figure of the circuit; With a single chip op amps LF351, it is easy to make equalizer offers three ranges, low frequency, mid frequency, and high. With com

3 band equalizer circuit
Click here to download the full size of the above Circuit.

ponent values shown there is approximately +/-20dB of boost or cut at frequencies of 50Hz, 1kHz and 10kHz. Supply voltage may be anything from 6 to 30 Volts. Maximum boost 20dB is only realized with maximum supply voltage of 18 Volt.

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