Okay so I was readin the thread audio guru's but couldn't find my answer.. Lets say I got new door speakers, and a 10" sub behind the seat, what kind of amp would I get to power both the speakers in the door and the sub? I'm kinda clueless when it comes to pickin those things out. Thanks!

 

Either a 4 channel where you can bridge 2 of the channels and leave the other two unbridged. I assume they have these. I've seen some 3 channel amps where are specifically made for powering a sub and some speakers.

Or you could run 2 amps. You could run a 2 channel amp for the speakers and single channel one for the subs. I do this only I have a 4 channel amp for the speakers as I power my front and rear speakers with it.

 

I would suggest on going the 2 amps route that hometheaterman suggested, you will be much better off, going with a 3 channel amp is usually somewhat of a cheap way of doing it and wont put proper power to either the sub or the speakers... you could do the 4 channel amp with one set bridged and another undbridged, but you will probably spend as much money finding a 4 channel amp that has the power to put into a sub and into speakers as you would getting a good 2 channel for the speakers and a good mono for the sub.