Looking for a new (preowned OK) line stage under $5K: suggestions?

Considering upgrading my near vintage Classe Audio DR5 preamp, which I use as a line stage, for the following system:

Feickert Volare TT/Audimods 6 arm/Hanna ML cartridge, EAT Petit phono stage, Naim CD 5 disc player, Pass XA 25 amp, Joseph Audio Pulsar 2 Graphene speakers/Sound Anchor stands, Synergistic Research Foundation full loom.

Basically, looking to maximize dynamics as well as a touch more midrange bloom and dimensionality.  Slightly to warm side of neutral preferred over lean.

I'm thinking a tubed unit would work best, but I'd consider SS if it fits.

Also considering warmer cables, planning on swapping Xavfino's (Fusion) for the Synergistic's as a trial.

The basic issue is that the room is somewhat too "live" sounding, and my wife won't approve of room treatments (it's also a family room).

The system otherwise sounds great, and maybe within the described constraints, there's not much I can do effectively.

Input appreciated!