I finally found this thread again. Lots of great information- and presented in a friendly way.
This is how audiophiles can learn.
@OP I think you really nailed the differences between the Ayre and D'Ag amps.
Pat at SMc makes a similar case for the Synergistic Black Fuse,too. As a 'budget minded' buyer, I hate to indulge in fuses, but hearing from such distinguished reviewers convinces me to give it a try.
Bob