three things here -

Ekstreem G - i agree with hillbilly on that, get a better alt (also check Excessive Amperage) for the dimming. in all fairness, those RF amps are usually pretty hungery.

Lastcoupe - how is it you are only hitting 100 db it 2 2000 watt Audiobahn 12's and a 1800 watt amp? i had 2 RF p2 10's and they were getting to low 130's.

Xplod stuff - Sucks. i dont know what else to say, its really all crap.if you send a true 1300 watts to a 1300 watt 12" Xplod - it will die a deserving death.

 

i have a 1.5 farad digital cap i see the volt goin up and down
i have a planet audio 1400d and my lights dimed even withthe cap i put in a sec battery and it stoped unless i have the ac on and the raido up. but it only drops to like 11.7 instead of 9 befor the sec battery