I have a chevy colorado extended cab and I am about to be getting a system and I just want one sub. I dont know whether to get the t2 or the w7. I hear alot about sq and spl but I dont know what that means. I want one that hits hard and sounds pretty decent. Any advice? Please I really need help on this decision. Like what will be the different soundings? If the rockford t2 hits hard will it still sound good?? And the w7 sounds good will it still hit hard??? Thanks.