I have the Alpine 9833 HU and Infinity Perfects 5.1 and 6.1 comps. (100 watts RMS, 400 Peak) I was wondering out of all the Alpine amp's which one produces the most power from a 4-channel? (was thinking about MRV-F540) Also what is and how can I get 2 ohms (more power) How can I get 14.4v of constant power?