I am looking to replace an aging Denon receiver with an integrated amp to power my M3ti's. This is a two-channel audio only system. I have narrowed down the choices (due to cost considerations) to the Cambridge Audio A500 and the Nad C320BEE. I have read both good and fair reviews on the Cambridge A500, and mostly all positive reviews on the NAD. Admittedly, the Cambridge has a better cosmetic look (IMHO). Any experience with either of these with the M3ti's? Thanks.