Perhaps I am assuming most people are using the group buy pcb boards that have three pots .
The central one adjusts dc offset to ground.However the other two can be used to adjust the bias current for one or the other half of the bridged amp.
You tweak these to get a mismatch between bias currents of the two bridged amps by about 5-10 %.In my set up the amp half that supplies the neg speaker output has about 40 ma less than the other.
The central one adjusts dc offset to ground.However the other two can be used to adjust the bias current for one or the other half of the bridged amp.
You tweak these to get a mismatch between bias currents of the two bridged amps by about 5-10 %.In my set up the amp half that supplies the neg speaker output has about 40 ma less than the other.