@Mapman, it's interesting that you mention not going back from Class D, including to tube amps.
In addition to the Peachtree Grand, I have an ARC VSi55 that I run in the winter when the heat isn't an issue here in AZ, and I swap them out between my two rooms just for fun. I consider the ARC to be a nice amp, nice sound, nothing to sneeze at. And we've done just casual A/B tests between the Peachtree and the ARC, and at measured equal sound levels I honestly can't tell them apart. They sound equally enjoyable, except that the Peachtree can play much louder effortlessly. Which sort of highlights how far Class D has come...you get tons of power, in a nice footprint, low weight, without all the heat, and at least in my case it just happens to sound as sweet and balanced as my Audio Research tube amp.