Thursday, November 13, 2014

Bass and Treble Controller Audio Equalizer Circuit

An audio equalizer circuit is used to adjust the frequency response of an audio signal. This is a simple equalizer circuit  for controlling the bass and treble (tone) of an audio amplifier. For use this equalizer circuit in amplifier, equalizers output should be given in the input of amplifier. So that the main input  audio signal’s bass and treble could be controllable before the amplify section.

Circuit Diagram of Bass & Treble Controller- Audio Equalizer:


Audio
Fig: Audio equalizer circuit for Bass, Treble control
As shown here the bass and treble controller circuit  has two variable resistor(VR1 & VR2) to control  the bass and treble. VR1 for Bass Control and VR2 for Treble Control.
This Bass and Treble controller circuit needed a  12Volt power supply. I would have designed it  in that way because 12V is used in most of the audio amplifier circuit.  and since equalizer circuit is used with audio amplifier, so therenoextrapowersupplywillrequiredforthisEqualizer.  This audio equalizer circuit is very easy to build and has a very good quality.

1 comment:

  1. Hello,
    I think BC 548 is npn, and so the collector to ground?
    regards

    ReplyDelete