Car amp being weird....
i have a sony 760 watt max amp, when i plug both rca's up to the amp and turn it up loud, it makes the subs pulse real fast. but when i only plug one rca into it, dose not matter which one, it works fine, but is not as loud... im pushing 2 premier 10"s 1000w each, and have them 4 ohm wired up and bridged at the amp .... new amp? rca's in amp bad?