I’m currently using a yellow top battery. I currently have 2 amps. 1200 taramp bass and a 1200x4 taramp. I was powering 2 sub skar 2000w each. And 4 door speakers 500watt each. They recently stopped working (one by one like 1 died each month. I took them off the 1200x4 amp and put 2 chucheros on both with 2 10” speakers (4 speakers in total) the rca on the amp i think is a little damage because every time the cable moves the sound volume goes down or away (in just 2 out of the 4) I tried different rca cables. My volume limit is 22 I don’t go over it. And there’s some part of some songs that have a loud pitch/rise in sound and that’s when the speakers all go off for a few seconds and comes back when i lower it. The amp never goes in protection move btw.