A reader awhile back had the need to do some hardware work on the Audio Precision APx555 B-Series machine and in the process, was able to take a few photos of the innards, sharing it with me. The B-Series audio analyzer is the latest and greatest audio measurement device from AP. It was announced in December 2018 and here's a nice review from 2019 in audioXpress.
Absolute value refers to the intrinsic abilities, unique features, workmanship/labour costs, and material costs of the product.
Relative value is determined by looking around at competitors and trying to uncover relative abilities/characteristics of a product within the arena of others.
Perceived value is determined by the buyer him/herself and "Gotta have it!" emotional sentiments. The need for gratification of that desire drives demand.
"For absolute hi-fi sounding resolution, I would go with SuperDuper's Amp One. However, if I wanted a luscious soundstage and great spatial depth, I preferred UltraPrime Amp A!"