I have the NAD C390DD, which is the lower-cost but more fully-featured product using that technology. Happy to answer any questions -- PM might be best.
NAD M2
Does anyone have experience with this amplifier? Reviews have been good, but they seemed to have some reliability problems. The technology is interesting, and 180 degrees from where I have been looking (tubes). This would be for Merlin VSM, just throwing it out as a totally different direction.