Ok, i've checked my wireing and the amp is getting power, but i'm not getting any output, the sub isn't even moving. i'm running it 250wrms at 4ohms. the subs is hooked up neg to neg, pos, to pos. the sub is 4ohm dvc. any ideas? anything i might have overlooked? is there anything cheap i can buy to test if the amp is even producing output? thanks again guys.