Excellent preamp. Superior sound. Also triples as terrific headphone amp, and it puts out 1w per channel if you want to hook up speakers directly to it. I've run it with a set of John Blue JB3's on my desktop. This amp has received nothing but stellar reviews.
Comes with both the regular and upgraded power supplies. The upgraded power supply is in the pics. I'm not the original owner, but I've taken great care of this unit. Used in my office at work. Selling because I'm losing said office.
It will also come with a new, extra plexiglass top cut for tall output tubes, should you decide to go that route.
The manufacturers website is http://www.lineartubeaudio.com/microzotl
Please read the reviews. One of the best pieces of audio gear I've ever owned. Sorry to see it go.