I just got back from a coworkers house after having the most amazing audio experience I've had. He has NHT 2.9 speakers, an Advent Pre-Pro and a 300 wpc amp @8ohm amp(forgot the brand as now I am a few beers since then).
This was my first experience listening to a nice system with an external amp. I was feeling pretty good about my AVR-635, but this system was amazing. Of course, we played the EAgles Hell Freezes over DVD. The clarity and fullness was amazing. The speakers were a little bright for my taste, but unbelievably clear. I came home and put the farewell tour DVD on..... For the first time I didn't think my system sounded so super. Actually, I like the overall sound of my RTi's better than the NHT's. The sound seems to be more balanced. Not as bright. BUT....I can definately hear the difference the giant amp made. I'll keep my RTi's but need an amp!!!!
In an unbelievable, historically recordable, event... My wife said, "Wow, what about his system makes it sound so much better than yours?" I told her it was the giant amp. She said "You should get an amp...That is actually the first time I have ever been able to actually tell a difference in the audio stuff you show me." (oh yea)
SOOOOOOO.... The AVR 635 seems to actually have a pretty damn good amplifier section in comparison to my ****ty JVC and most other receivers I have heard. If I were to try to save $'s and buy a 2 channel amp rather than 5 ch to drive the RTI's, would that free up enough load on the HK that I would be satisfied with the overall sound by driving the center and rears with the HK? should I think about 3 channell (fronts and center)? Bite the bullet and go right for a 5 channel amp? (my room really isn't big enough to go 6 or 7 channel)
Also, anybody know much about the NHT 2.9's?