So recently I've had some time to think about how to get the most out of my SDA 2's that I picked up last year (also have monitor 7's and RTi8's). Currently, I have a very pretty (can't believe I used pretty...) Onkyo A-7022 integrated amp and an Onkyo HT-R530 receiver from a theater in a box set (yuck). Fortunately, both amps seem to be able to handle pushing the speakers to pretty loud levels but I have a feeling I could stand to benefit from investing in a pre-amp and/or amp and improve in the quality department. I'm looking at a NAD 2150 amp and plan to take a leisurely drive down the good ol' Jersey Turnpike to see George's NAD 7240PE . Any advice/input would be greatly appreciated.