Oppo 95: Sound compromised w/var. audio output?

In the past with players, turning down the volume with a variable audio output control compromised the sound.

Is this the case with the Oppo 95? I thought I'd read somewhere that it isn't. I'm specifically interested in two-channel audio in Pure Power mode.

I also read that at 32 bits there should be room for no compromise, but i tried it (easy to do) direct to my amp & didn't like it.
Probably depends on your preamp.
It works great with my preamp, i.e., lowering the volume on the player and using a higher volume setting on my pre.