I used to do the car audio thing as a hobby then i said hey i can make some money off of it. I build lots of competition systems. I have 4 Power Acoustik 2000Watt subs in my car along with 1 amp for each sub. So for subs and 5 amps. 4 for the subs and 1 for the highs. Good thing i can type good because i wont be able to hear before long. LOL JK i wear ear plugs for sound offs.