CD Player with Volume Control

"...attenuating in the digital domain..."

Not my favorite thing for many reasons. OP just needs a passive volume control, much better without stripping information.  

Separates or nuttin'.

I do have a good homemade (not by me) passive pre...looks like that will be the way to go...and yes, for this project, CD only, not computer or streaming...

I recently purchased a Mark Levinson 39L as a "temporary" replacement for a CDP that was fried during Hurricane Ida. The 39L was not manufactured within the last 5 years; it cost 2500usd, pre-owned; and it only plays redbook CDs. It fronts a 300b SET that drives a pair Zu Def 4s. It is built like a tank and has a full-function digital pre-amp. I did not expect a lot, but have been blown away.

Asks about a CD player, immediate response is ripping files and laptop computers….