well, right now i've got what's in my signature, but i don't know what i'm going to do with them, whether i'm gonna go all one brand or what, i have yet to get over to my local car audio place and listen to some brands, specifically JL and MBQ. how are focal? also, one of my problems is that the factory speakers were 6", and i don't know many good companies that make 6". so what i'm pondering on doing is to cut the hole bigger and drill new holes so i can use 6.5", but it's under the door panel and i don't wanna cut a hole in the door panel and, arrrggggg, but i'll figure something out, in the meantime, maybe you can just give me some companies that make good 4 channel amps, and i'll look at them. thanks in advance.