Originally Posted by PPI_GUY View Post
Are you saying leave the headunit gains at 2V or amp? The amp input gain is variable all the way to 2.0V.
My thinking is to use a test tone to find the point on the volume knob of the h/u where 2.0V is reached and then set amp gain for distortion based on that. But, I freely admit I may be making it more complicated than it should be. LOL.

I've always set by ear before and want to finally do it right.
You are making it more complicated. Don't forget, music is dynamic, static will give you accurate numbers, but its the dynamics that you are listening to.

glad to help.