No suggestions? OK what are you using?
For the most transparent/dynamic/uncoloured way of hearing the source, I go direct, if the source has a digital domain volume control, and if the gain is right to allow me to use it at or above 75% of it’s full volume output, so no "bit stripping" is introduced.
But if not I leave the source volume full up, and use the Lightspeed Attenuator. (my avatar) as my volume control.
Cheers George