Here is another simple stereo tone control circuit. What makes it simple is that is uses a DC controlled tone control IC LM1036. The potentiometer act like a variable voltage divider and the output is fed to the IC that controls the level of Bass, Treble, Volume and Balance.
About the Circuit
The circuit is simple and based on the recommendation of its datasheet.
Eagle PCB project
PCB Design
As usual I always do the PCB design on a single layer PCB so that it will be easy for those who want to build it on their backyard. You can also download the eagle PCB files so you can modify it according to your requirements. Take note on the size of the potentiometer, this is not the usual potentiometer you can find.
Downloads: