Quote Originally Posted by tom4bren View Post
You can't think of 'lectricity in that way. It travels the path of least resistance. The amount of power lost by the rear speakers is proportional to the input impedance of the power amp. If it's designed properly, it should have a very high impedance which will minimize the amount of loss to the rear speakers.
Yes I know this, but the path would still go to the rear speakers. I'm looking at it from my experience, I never lost much if any off my interior speakers when i ran line-level converters off the rear speakers to run subs with a factory head unit.