Amp and preamp for dq10s


I have a McIntosh 2205 powering them now and feel there is something missing. Any thoughts on a powerful unit 200 watts a channel with great mid and high with solid base. My taste in music is jazz and acoustic guitar easily driven music. The room is 12x15 but open to kitchen and hallway . Ceilings are 8ft
thanks for your thoughts.
128x128brianportugal
Thankyou everyone ! I'll keep my eyes out for the ones mentioned. Has anyone tried an audio research 100.2? Or audible illusions? I do have a McCormack tlc1 delux with power supply, maybe a Dan 1 is the way to go and sell my mcintosh 2205.

keep the suggestions coming , I heard that a4b was good with dq10 but bryston said a 4bsst is much better. 
I happen to have a pair of mirror matched DQ-10s in fabulous condition that I am willing to sell. Contact me if interested.