blackrado
+1y
im runnin 4 memphis 12s on a 1000.1 memphis amp, a memphis 1 farad cap, an optima yellow top, and a stock 100 amp alternator. my battery gauge with the subs off is at about 14 then with the subs on it drops down between the 14 and the 9 i dont have a pic of the battery gauge but its in a 99 tahoe and i think most battery gauges are the same thanks