I'd guess setting the Oppo to max output from min output gives an increase in dynamic range aka 'bit depth' - higher signal to noise ratio, hence more audible detail and so forth.
I'd guess setting the Oppo to max output from min output gives an increase in dynamic range aka 'bit depth' - higher signal to noise ratio, hence more audible detail and so forth.
Current Lash Up:
TEAC VRDS 701T > Sony TAE1000ESD > Krell KSA50S > JM Labs Focal Electra 926.