Alright I used to have 2 10's with a 1000watt peak amp and they ran just fine (dimmed the lights but was fixed with a new battery). But I just got 2 15's powered by a new 1800 Watt amp and my lights dim and if i turn it up the amp will go for a few and shut it self off. could this be caused by a voltage drop? I.E. if I got a capacitor would it help? my wiring is all fine, and my battery is great, the yellow top optima(SP?).