Well, I have 4, 10inch Kicker Impulses in a custom box & a 12 watt Hifonics Amp and a 1.5 farad cap made by Raptor. The cap really helps with dimming of the lights when the bass hits. So if you have the same problem it does help to have a cap. Here are some pics. The Kenwood amp in the pix blew out a while ago, so thats no longer here.
Page 5-Sound System (You Are Here)