This is a solid state buffer and +6dB gain stage that can be used for impedance matching as well as to add gain to a passive system. I used it as a gain stage with my passive preamp and phono preamp with great success. This is a quiet, well made component. A purchase of a linestage has put this on the shelf, however. A link to the PCX product page is here. It includes all the info you need to know.
http://www.partsconnexion.com/burson/ab-160.html The unit is in very good physical condition and functions perfectly. There is one scratch on the top cover, but that is the only flaw I can find. It is pretty heavy, but I get a good discount through UPS so shipping should be pretty reasonable.
