Just got my JBL setup from DWK. Sounds fairly good, I was hoping for a little more boom on the bass, but I think with a bit of adjusting it will work ok. The highs and bass from the front are amazing, it sounds like you are at a concert. And as a note, there was apparently enough bass for my sister to hear it inside and across the house. We have a freakin huge house, so thats saying something. I am still planning on getting the Mach RCU and tweeters, so ill compare them and post my findings.