[head lights are still dimming]

ok guys i love all the help you are giving me today starts my vacation for christmas so i have alot of free time to try diff things and will keep trying till i find the prob so keep the advice coming guys once again thanks.

[head lights are still dimming]

Well guys i already got halo head lights that i bought put on the car and just to help you guys i have huge voltage drop it goes from 13.9 down to 11.89 when the bass hits i do have another kinetik hc2400 that is in my girls truck that i will change out with the yellow top but thanks and keep the ideas coming cause i really would like my voltage to not drop.

[head lights are still dimming]

ok so i have a 2007 chevy impala with a 270 amp alt a yellow top up front 2 hc2400 kinetiks in the back as well as a hc3800 kinetik in the back as far as batteries so you all know all i am running is a powerbass 3000xa to my powerbass 3xl 12s 2 of them and a phoenix gold ti 500.4 old school amp to my mids and when i turn it up my headlights dim and i dont know why any help would be nice guys thanks.