I was wondering what would make a good amp for me to power my 1 15" memphis that is 200wrms and 400wp im lookin for something that can power that suffeciently and something that if I ever decide to get new stuff that will require more power that I will already have it. And on another note, on amps cant you turn it to how much power you want going to your speakers? Cause if I do get something decently strong I dont wont to be stuck with overpowering my sub and blow that money I spent on it out the window. Im lookin to get an amp from bestbuy , really dont need someting all that great , $200 and under for me on a amp please look on there and help me find something that supports that 15 I have and maybe a lil more. Thanks