During your listening test, in addition to your analytical listening did you also do what I like to call musical listening… no analysis, just close your eyes and see which amp is the most musically and emotionally compelling… and with no fatigue from an hour or two of listening
Its hard to turn off the brain and do this but at the end of the day it’s not the minute detailed differences in the amps that matter, it’s what makes you want to listen rather than do something else.