Audiobahn A2200HC 1600 x 1 @ 1 ohm. I have it wired @ 4 ohms @ 600 x 1. Running two audiobahn subs, forgot what model but they do 400 RMS, 800 Max. Got a ACAP1Q Capacitor with 4-gauge wire. My car is not old so I'm doubting alternator problems and Ohm load. Temperature can't be it either...