checked out the power supply,here is what my buddy used to do(he informed me that alot of shops do this) 3 OPTIMA YELLOW TOP(I RUN 2 IN MY TRUCK) IN PARALLEL.
charge them when not in use, do not use marine batteries as their discharge is a bit slower than the optimas.the yellow tops are car audio batteries they will run around $150 each.
this is probably the only way to get the current you are gonna need without spending(i've been told) at least $1000 for a stable,clean 100 amp power supply
to let you know, 2 optimas,2 1 farad caps,4-12's(in the cab),jbl component speakers,3 alpine amps(1507 in mono) for subs,i hit 151.2db in my s-10,took second in the shootout to a station wagon with 8-12's that only hit 152.4.man was i mad