Tube Preamps with Bass?

I love what a tube preamp does for the mids and soundstage in my system but I hear the loss of bass slam, weight and dynamics. I was looking at the Blue Circle G-3, Lamm LL2, CJ LS-17, First Sound Presence Deluxe, Joule Elextra.

Any opinions on these preamps or any others in the $5K or so price range mated to the Pass X-250 power amp and producing the added bass slam, weight and dynamics?

Thanks and Happy Listening.