I know its a bad ass amp its like 700-800 $ on audio savings, but it is not a 1ohm stable amp. He probably has it at 4ohms if i am correct since the subs are dual 4 ohms. If i do get them i will have to buy a 700-800 $ amp and i don't want to do that.Just to make my entire car JL Audio since i have JL mid and highs with a JL amp.