D200 Output power settings

[Hifi_swlon]

I'm sort of confused by this feature too - I'd hoped that due to my relatively sensitive speakers, I could lower the max power, and get more useable scale on the volume control as well as (hopefully) limit the amount of digital reduction that was being used.  This would not only save power, but hopefully give a slightly better SQ, as even if its 40 bits or whatever for the attenuation, in theory using less attenuation should still be better?  But I couldnt tell any difference at any setting other than perhaps a slight change in volume range.