Audiophile grade passive impedance buffer

Musical Fidelity has one of those tube buffers

@armstrod What a fabulous piece of gear! I would buy that thing simply on principle. Now awaiting a dealer response. Do you personally use it?

@czarivey Heard rumors of that one but could not track down a specimen. 

Space tech labs has several balanced tube buffers.

@invalid Fascinating, who knew? Not I. These seem to have balanced OUT, but no balanced IN. Versatile and reasonably priced. Thanks.

Al from space tech can build whatever you need, just give him a call or email, he usually answers in a few hours or less.