BAT VK-60 or Another tube amp?

There are many (CJ and Rogue come to mind), but none have as much current. This is what makes the VK60 somewhat unique. However, it will not have as much current as your Pass 250. Perhaps a monoblock version VK150(?). Also, these amps are huge, heavy and emit lots of heat.

Music Reference RM-200, great detail even a low volume and throws a huge sound stage. It's a hybrid amp that has gotten rave reviews. They pop up once and awhile in the low twos, but always sell fast. Good luck!

I would go for the Cary v12 or for a bit less money the Cary Rocket 88. A steal these days are the Six Packs from AES (Cary's lower end line). I have heard good things about the Six Packs