I am the only owner of this highly regarded headphone amplifier. It was given a glowing review by John Brazier here: http://www.positive-feedback.com/Issue11/cyber20.htm
The faceplate has a few amenities. There is a plug for a second pair of headphones. If you and your [fill in the blank] wish to enjoy headphone togetherness, this is your stop. The unit has a "high" and "low" impedance switch. "High" is for headphones with an impedance of 300 plus, while "low" is for 300 or less.
This model is the basic version: the power supply is housed in one compartment along with the amp itself. It uses 2 EL-84 tubes and one 12 AU7, triode mode. It sounds very lush and is a good complement to Grado headphones or other cans which exhibit strong treble energy. A great first amp. I'm upgrading to a 6v6 hand-built job which will double as a SET amp for the bedroom. This sale will help pay for the upgrade.
I am the original owner. Amp was purchased March 2011 new. Cost was $550. I am asking $260 firm. It comes with new Genalex Gold Lions, a significant upgrade from the original tubes. 2 Ei's will be included as backup EL-84's.