Prepro for B&W/Krell combo?

I have b&W 803S Fronts, 804S Rears and a HTM1 for the Center channel. For amp I have a Krell 3x250 for the LCR, and a Krell 2x200 for the rears. Upgrading the fronts to 802D is possible in the distant future.

My room is treated a bit with acoustic panels, and I have my furniture setup as well as I can from an audio perspective while still allowing it to be used as a living room.

Currently I am using a Denon 3806 as my Prepro. It has all the features I want right now, but I think I could improve my sound with a nice Prepro.

Of course the B&W/Krell combo is quite detailed so a Prepro with a little warmth may be good. In addition the following features are:

Must Haves:
New or Used price $2500 max.
DTS, and 96/24 DTS.
Analog PassThrough for 5.1 OR Audio HDMI (for high res audio).
5 or more XLR outs.
1 XLR In.

Nice to Haves:
7.1

Do you have any recommendations that fit these requirements?

Thanks,
Darrell