How many hours do you have on the 7.2's? The break-in period can be relatively long and the speakers will sound just as you've described if not broken in.
If break-in is not the issue, an alternative to the big amps previously suggested is the "poor man's Krell" - Bryston 14B-SST. I had one in my system with the CS6s and was very impressed. The 14B is a 600 watt dual mono in a single chassis. Very big soundstage and incredibly low noise floor. Microdynamics abound. Nice piece of gear for half the price of Krell/Levinson.
If break-in is not the issue, an alternative to the big amps previously suggested is the "poor man's Krell" - Bryston 14B-SST. I had one in my system with the CS6s and was very impressed. The 14B is a 600 watt dual mono in a single chassis. Very big soundstage and incredibly low noise floor. Microdynamics abound. Nice piece of gear for half the price of Krell/Levinson.