If these amp are listed as class A there have been reviews on them in Stereophile. That would be a good starting point in your search....
Compare Ayre, LFD, Luxman integrateds?
Stereophile has Ayre, LFD, and Luxman integrateds at similar price points listed as "class A." How do they compare with each-other? I'm sure they are all fine products; I'm hoping to hear from people who have actual experience with at least two of them and can comment on their differences.