I agree with HDCTSS. I have had all aftermarket stuff on my previous bikes , and yes they sound great while the bike is standing still just like the Boom Audio does. I ride at 80 all day long with Rhinehearts and I can hear my Rock just fine and so can my wife as we listen to her Latin Music.. Comon guys, I gotta compromise..Don't waste your money on aftermarket stuff its junk to and will ultimately affect your electrical and fuse system. Its all made in China,Japan or Tiawan. Its whoever markets their stuff the best. I built a Custom Road Glide for a guy who spent 5K on AMps, Subs, Kickers xtra BAtteries just for the system and chargers, and it never worked correctly. Sounded great sittin still but once the vibration and the road took in it was done.. Also, Aftermarket buyers beware, don't get that stuff wet. Buy more chrome Horse power brother.