I would like to get 2 15's.But have a couple things I would like. Could anyone suggest what subs would be great for me. I would like them to be 500 watts each. and also I would like to make the box sealed because it would be easy for me. Because I dont think I would do a great box if i make it ported etc. Also I don't want to get get a new alternator or battery, so that is why I would not get anything over 1000 watts. Thanks for any help.