sierra, if i had the choice like you have now then id go for a 650 flat personally, i think it does drive better and if you mount the upright behind the seats across the van then the baffles dont do their job and you get the swaying when you stop which drives me mad!!!!!!!!i make you right as well about idiots that are quick to jump on the posts and knock people when they dont know what they're talking about thats why i dont post most of the time cos i cant stand some of the idiots on here, trust me get a 220 90ps connect, they are the best (for residential i think)