well guys i got this weird problem see if u guys can help me. I Got this two 12 and 2 amps with Power Capacitor well the problem is the sistem will hit hard until i hit the brake and go slow and the sound goes like soft and bad but when the car is in idle the sistem will hit hard i got only one battey running thru everything do u guys think i need a extra battery for more power and if u guys can let me know how i can hook that extra battery let me know please thanks !!