I am narrowing my choice of amps down to 2 brands. I will be pushing a kicker L712" solobaric, rated at 75-750 watts RMS, and will handle peak power of 1500 watts. It is a dual 4 ohm speaker. I am a little confused on the technical information on the 2 amps I am looking at. Both of these amp figures are at a 2 ohm load. Here they are: Kicker kx600.1 mono amp Kenwood KAC-X810D mono amp Price really isn't a deciding factor. On kenwood website, the recommended sell price is $750, but I can get it new for $299 The Kicker is normally a $500-600 amp, but I can get it for $279.00 new. The Kicker says it will put out 600watts X 1 RMS with 13.8 volts going to it, or 690watts X 1 with 14.4 volts going to it. 1.5% THD THe Kenwood says it will put out 600 watts X 1 RMS with 12 volts going to it, and 800 watts X 1 RMS with 14.4 volts going to it. .5% THD Which one is better, and how much volts will I be able to get constant out of my alternator and battery? I am guessing the Kenwood is better if I know I can only get a constant 12 volt feed to the amp, or better if I can get a 14.4 volt feed. However, I have always heard that kicker amps are under-rated and actually put out more power. Can some one please help me figure this out? which amp is better for me? I personally like the kicker amp because it has a built in fan and a remote bass control that you can mount to the dash. But I want as much 'bang for my buck' as I can get. Thanks Guys!!!