I've heard of those brands but never seen them sold down here in mississippi. Got JL ,RF ,alpine ,pioneer ,kole ,genesis ,and a few more. I like my setup now ,a lot of ppl say it's loud ,it's in a 2000 prelude. I wanna be way louder but I still wanna have SQ. I'd love to be able to hit a 150+db I know that takes a little money.