What Pre amp to use


I need some help. Please. I just got new Alto Utopia Be's and I need a pre amp. I have a BAT VK-500 and I want to stick with it. I have been using a Denon 5800 as a pre for 2 channel (and H.T.) but that won't hack it anymore. I need to keep the price at or below 5k. My initial thoughts are Pass Labs X1, BAT VK31, Cary SLP 98, Rogue Audio 99, among others. As you can see, I am pretty all over the place, I do not even have it narrowed down to SS or tubes. I do not have the ability to listen to all of these, so I am open to advice. Thank you for any input.
lougoldring
Look for a used BVaudio P1, an excellent choice. Also you made no mention of power conditioning- very important!
Lougolding, I've owned the X1 and the X2.5 pre's. You can do far worse than either of these and they are near identical in performance (at least with a good line conditioner attached).

Regarding the BAT VK-500 (with BATPAK I presume), as a previous VK-500 owner, I'm confident you can do far better for less. Even in the bass regions which is by far the VK-500's strongest suit.

-IMO