4 Band Equalizer

Posted by circuit diagram on Nov - 12 - 2010

The following diagram is the four band equalizer circuit. Equalizer is generally used to improve the fidelity of sound, to emphasize certain instruments, to remove undesired noises, or to create completely new and different timbres.

The equalizer uses four pieces of variable resistor to cut and boost four range of audio frequency, that are:

Low frequency: Freq. 35-680Hz
Medium frequency: Freq. 150-3kHz
Medium/semi high frequency: Freq. 450-8.5kHz
High audio frequency: Freq. 750-15kHz

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Categories: Equalizer
Tags: 4 band graphic equalizer, electronic equalizer, equalizer circuit, equalizer diagram, equalizer schematic, equalizer wiring,