When I am playing the music low I can here my subs crackling or something. When I turn them up they still slam tho. I don't listen to them turned up all the time so I am thinking about replacing them with the new generations or going to the new MTX thundersquareTS8500 or a single JL W7 don't really know what I want to do. Any suggestions I have been away from the music thing for awile now.