Originally Posted by bigaudiofanat

Not true, if he does it right and uses something better than a LOC like the mtx re-q 5. This will clean his signal and flat line it before going to his new amps. I have done this many times with other systems and they sound great. OP do it right and get something better than the cheap LOC's from bestbuy. The JL clean sweep is good as well BUT one big draw back to that is that you have to mount a volume knob somewhere and use that. Which is stupid.

Of course notihg will beat the quality of a new head unit outputting a signal. But to me 2 12's in a z is stupid to begin with.