Muralman1, being one of those 'tube guys' I have to agree in part with you- this is something (at least for now) that I for one will not admit. IME, class D has a long way to go to beat what I see as the advantages to the amps that we make though I do not hold that out for my competition :) as our amplifiers are apparently unique even in the world of tubes.
I understand the cost, heat and size issues. However for the time being if the system is chosen based on those constraints rather than sound, then luck and luck only determines the sound of the system- no doubt why so many want to know which class D sounds the best!
If instead, the sound of the system is chosen entirely on the basis of sound quality, you get a different result altogether. Our amps were designed for performance/reliability as number one, all other aspects being secondary- we took a stand for quality in so many words. Class D was specifically intended to deal with heat/efficiency issues inside a cost model- consequently trying to overcome the issues that result flies in the face of its intention. Not to say this is wrong or bad- in fact, making the best of a situation has characterized a good bit of human behavior and consequent innovation.