My install guy here in NY is a JL guy and has never heard of RE until I told him. He had advised me to go with 4-JL 10w7's, 4-Beyma 6.5's, 4-10" EV's and 6-beyma bullets. I have since learned about RE Audio and have decided to go with them. Now the only problem that I'm having is whether or not to do 4-18" XXX "or" 4 12" XXX! Only because he's saying that the smaller 12" XXX woofer would have a tighter bass than the 18" XXX woofer. Steve please advise me what to do in this situation especially being that you know RE Audio's products. This guy swears that JL will have better sound quality because he has never heard RE LOL! I'll be going with 4 RF T2000.1's by the way for the XXX's! OH, the install will be in a 07 Escalade. Thanx Steve!