What I want to know is if I am hooking up a B azzoka amplified bass tube,where do I get my high end signal?can I get it from my rear speakers?all I need is a right and left side - and + signal. I have read that the rear speakers only recieve a mid range signal?is this true and does this mean that if I use this signal to supply my 10" tube that it will not be a getting a bass signal?