I'm thinking about purchasing a Coustic 401 db, wanted to know if they are any good and if so, I'm looking towards purchasing a 12' subwoofer for it any ideas of what i should get? To view a Coustic 401db check this link. http://www.sounddomain.com/sku/COU401DB. Also wondering I have a 2000 Ford Ranger xtended cab, Just wondering if this type of setup is going to have some punch to it? Like will my truck vibrate, hear it from outside and feel it from the outside?