This would be a no brainer. You need a BAT preamp.
I've got two systems, BAT VK3i pre in one and a VK50SE in the other. Formerly an Audio Research fan, and recently demo'd an LS16 as a possible replacement for the VK3i, however there was no comparison in my situation. I find even the lower-end BAT gear to be a great value compared to the offerings of others. Some need flashy chrome and stuff, for me the industrial look works well, and the sound is right.
beemer