Bacon...I have a SQ 2 Farad cap....it does help(in older cars at least) with the lights and such. But my issue isn't just lights, it's over working the OEM alternator and straining the electrical system... Depriving the amp of power and killing a battery.

Berta...If I go that route I won't be on a budget SPL build lol. If I go to that extreme I will be getting some SMD subs and such. This setup is one sub and one amp, in a ATREND SPL box. Had the same setup with one 10" DB Drive k5 (625 RMS)and it hit really hard....Stepping up to a single 12" sub with 3000 RMS, 6000 MAX. (advertised anyways lol)