ok so what would make my amp just stop working like that? i was running the same amp at 4 ohms... for a week or so on some old kickers, while my subs were being made, any how, like i said i dropped my subs and amp in and while i was adjusting the gain each time i came close to half it shut off.. i did it twice... and then NO MORE!.... i have a 200 amp alt. 3 yelllow tops, all 0 gauge...... and im pretty sure im well grounded,,,,, i dont even know where or how to ground 4 0 gauge grounds.... i just have two 0 gauge thick sheet metal ground... with the paint off of course.... thanks for all the help. i just dont want to get my amp back in from CIA and wire it up and blow itagain, then be left to wait for ANOTHER repair.... i had one thought of selling this hifonics goliath and picking two jl 1000/1's... one for each bl... any thoughts?