Bernard, nothing that really discusses the topic in much technical detail, but Analog Devices has a
paper which discusses their system(used on the Denon 3805)and Gene DellaSala had some discussion and results on the Audyssey system(an older version of the present one on the Denon 3806)when he reviewed the
Denon 5805. Denon has a rather interesting discussion of the modified Audyssey system on their
site.
Maybe instead of "experiment" it would have been more realistic if I said "fool around" by trying different microphone positions to see how much that changes the results, etc. One thing from your numbers is that the manual, which shows only five specific equalization frequencies, apparently doesn't mean that the five adjustments can only be at those frequencies, since some of yours are different. Despite the almost total lack of information, the 703 is parametric at least as to frequencies. Presumably the manual equalizations discussed later would have to be at the specific fixed frequencies listed.
