Isn't it the receiver and not Audyssey that sets the speaker levels and distances, Audyssey goes the extra mile and sets up an EQ based on the room environment. You can adjust levels up or down(yes reference is then moved but each to his own, loud is loud) just not the Crossover because Audyssey uses that frequency for its algorithym.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70