I have a Relocated Odyssey Battery (PC2150), 0Ga feed wire. 12" MTX 9500 on a 1501D MTX Amp. Infinity Speakers and 4 Channel Infinity amp for the interior speakers. Sub runs around 1000 watts RMS and interior speakers run about 450 watts RMS. Its around 1500 watts Total RMS With that said i bought a 200 AMP alternator. This stereo seems to eat 3G alternators for breakfast. I had a 200 AMP one from EBAY. Worked about a year and died. Is PA Performance worth the price??? If i could get the parts i would rebuild my 200 amp Alt. myself.