I appreciate the information greatly. . I did read that review on the C375 as well as reviews of the C272. I noticed in the pictures that NAD added some extra ventillation to the new C275.
I can see this is going to take some time for me to figure out. Options in my area of Upstate NY are rather limited so I will be checking out some different combinations as best I can. I'm limited to around $2100 US dollars for pre/amp combo. My choices around here for equipment I can afford are Rotel, NAD, and Marantz pretty much. There's also Classe', Musical Fidelity and Bryston, none of which I can really afford. There's also the only distributor for Roksan in the U.S. in Niagara Falls which is only 1 1/2 hours away from me.
Speaker choices are B&W, Totem, ERA, Atlantic Technology, Monitor Audio, PSB, and Paradigm.