Jeff, thanks for your comments. I have a turntable but it’s in a secondary system. In my main system with the PS Audio DS jr, my sources include a Lexicon RT20 universal disc player, a W4S MS-2 music server and a Wadia 170i/iphone for Pandora, etc. I have no need for another source. My intent for the preamp is sonics not analog inputs.
Judging from all of the comments, it looks like the 250 is likely my best option. I like the W4S ST-1000 mkii but I feel a hybrid amp will flesh out the music a little more. I hope a $7500 amp will outperform a $2000 amp. If not, I would be sorely disappointed.
In a previous system, I used a Rogue Audio Medusa hybrid amp (tube/Class D) with good results. Another Medusa is a possibility, but I like the PS Audio DS jr so much that I would like to give the 250 a chance.
Finally, my finances would allow for both the 250 and pre, but my “budget” will not. I do not owe on my house, cars or anything, so I would not dream of financing stereo equipment. Anyone that would needs to check into an audiophile rehab clinic.