I have owned the NAD C320BEE for just over a year. Interestingly enough, I have only used the NAD with acoustic suspension/ sealed enclosure bookshelf speakers (the Acoustic Research 302 Classic Series and the NHT SB 2). If I were to extend this logic to floorstanders, I would say to take a look at the NHT ST4 (approx $1000 list).
Regards, Rich