Rockford Fosgate Power T1693C those are my 6x9 rears and they are a 110 Watts RMS / 210 watts peak and the front 2 are Rockford Fosgate Power T1462C with 40 watts RMS. Now should I go with a 4 channel amp or just leave the front speakers to work with my Alpine CDA-9856 which has 18 watts RMS/50 peak x 4 channels. So if i use the headunit for the front 2 whats a good but fairly cheap 2 channel amp for the back? Ive already got a RockfordFosgate 601S punch amp but was thinking about using that for the subs.

lo0k into an MTX,alpine,infinity anything that does around 75watts rms x4 @4ohms just turn the gain down for the front two channels,u can go bigger with 100rmsx4@4 ohms but amp will be more.If your on a budget tho mtx,alpine,infinity,kicker and new pioneer 4 channels are pretty go0d to0,any of those amps should do the trick for ya...