Up for sale is a high perfomance BAT VK-5 SE; full balanced preamp.  The SE model has "six pak" output capacitors, toroidal power transformers, and numerous modifications to the standard 5i model.  It also uses NOS 6H30-DR tubes.

Stereophile review:   "The 5SE delivered more information than the 5i and like the '50 popped up a deeper more transparent soundstage.  The presentation sounded more linear less overtly bloomy more precise and coherent and spoke with greater apparent authority.  The highs were tidier less warm and inviting than the 5i's but more detailed and textured.  Same for the bass: deeper tighter quicker more transparent with greater impact and slam.  With the 5SE I could hear more deeply into the performance; it was more revealing of fine recordings and alas of poor ones as well."

MRSP = $5000 USD.  Condition is 8/10 due to age.  Very good condition over all.

Comes with metal remote ($500 upgrade).