I'm running a Clarion DXZ835MP powering an Alpine MRV-F353 5-channel amp, powering a pair of 10" Kicker Comp VRs in a bandpass box. The front speakers are driven through a pair of crossovers from a pair of Infinity Kappa Perfects that were in my roomate's car until he kicked one of the speakers and broke it. I was pleasently surprised that they actually worked pretty well...

I'm using all stock speakers. I had planned on replacing them when I dropped the head unit, amp and sub in - but honestly, I think they sound great.