Stereo & Electronics - gettin rid of subs and amp

I wanna get all 6 speakers to work with my aftermarket head unit so im gonna
buy some new speakers, just wondering if i need a 4 channel amp. My head unit can run 22watts rms by 4 channels (according to the website). any suggestions for an amp? Im not going with anything special, i do have a 2 channel RF 1500 watt amp (150 watts RMS x 2 channels) I would think that would over power the sound in two fo the speakers.

suggestions...ideas..opinions...anything to help me out?
thanks fellas.
Travis

well the 1500 RF is a sub amp I wouldnt use it for highs. Id get something like a JL 400/4 for the highs. or any clean 4 channel amp that does 50-75watts RMS per channel.

are you gonna run subs still? or just mid/highs?