I have been piecing together my system for awhile now but it is finally coming together. The reason it is taking so long is cause i buy stuff when i have some extra cash. I have 2-12" alpine type e subs in a sealed box and a 1800 kenwood amp. I also have a jvc head unit i will be installing soon i just have to wait till i get that special wiring harness. my question is will i have to run a capacitor for my system? The sales rep at best buy said no but I don't know if id trust him. thanx in advance for the help.