lights dim

I have 2 rockford fosgate p3 12" with my prime 1200.1 and they are wired to 1ohm I added an extra battery to my car and ran it to the back with 0g sky high wire and from my amp to the batt I'm running 4g wire. Problem is that my lights still dim ! The battery is an hc1200-BLU and this is all...

Okay, so I put a system in my fathers 99' Chevy Blazer LT for him (and me of course) and its been starting hard, and the lights dim when I have my DD slapping. So I am thinking it time for the big three. I need some help though! First I wasn't sure if I have to have a fuse between the alternator...

i recently did the big 3 upgrade when i installed my amp the wire i used is kicker silver tinned ofc 4 awg wire the amp im using is a crunch pza2000.1 on 2 kicker cvr 12s i dont have the amp turned up all that much but when the bass hits my lights dim and flicker i got a 136amp stock alt and my...

hello guys. im really stumped on how to fix this light dimming/voltage drop i get from my truck. its a 2000 chevy silverado 1500 with the 5.3l v8. i only have 4 10 in p1s which is only 600 watts rms. i have two RF 201s amps for the subs and one RF prime r150-2 for the front door speakers. ive...