Existing system: Sony DVD/SACD player Denon 2803 Hafler DH-225 (mono) Infinity Entra Center Two Hafler DH-500 Infinity Entra Three fronts Hafler DH-500 Infinity Entra Two sides Hafler DH-225 Infinity Entra Center rears (two, mounted 6" from ceiling) Behringer Feedback Destroyer Parts Express 240 watt plate amps (2) Dayton Audio Quatro 15 subs (2) in 5.5 cube boxes, ported to 18hz Room is 34x17, with seating about 12-13' from screen/center/subs. Ceiling is dropped "acoustic" tile. It just doesn't seem to get loud enough. I mean, it's "okay" for movies, etc., but if I toss in a concert DVD (Who, Jet, AC/DC, etc...), things just don't seem that loud. Sounds nice, and it's seamless around the room, but it just doesn't reach out and hit you. I commonly run the Denon at "zero" on its scale (it starts at -60, and I think that zero is supposed to be "reference." If I run it much hotter than +5-6, it seems like I'm getting distortion. I _should not_ be clipping those amps, right? The speakers seem to get a little shriller, etc., which goes with the Entras - I definitely can't use them to listen to jazz, etc., but they work okay for rock (my maggie MMGs upstairs cover the more refined music...). Any suggestions?