I am using a Rotel 991 with my B&W N804s, and I could not be happier. I am sure Classe and Bryston are better, but they are more expensive. The CDM 9NTs are a very similar load to the 804s. I think you will be very happy with the Rotel 991 or the newer 1080. The only difference between the two is a 12V trigger. If you need more than 2 channels, you may be able to find a 993 used which is the 3 channel version, or the 1095 is the 5 channel version.
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