Hey whats up guys, I just opened up an unidentified package from UPS and it turned out to be a X-mas present: Infinity Kappa 6.5 multielement 3 way speakers. Here are the stats: Power Handling, RMS: 75 Watts Power Handling, Peak: 225 Watts Frequency Response (Â±3dB): 45Hz - 22kHz Sensitivity: 90dB Impedance: 4 Ohms I don't know too much about audio, so i need some amp suggestions. What power ratings would I be looking for? Id like to limit my spending to about 150 (or less if that is possible with a large decrease in quality). So any specific recommendations. I usually buy off ebay so that gives you an idea of prices. I think im going to run the rears off the head unit and my sub off a separate amp. Thanks!