Cleaning house. Purchased in Feb or March 2012. It is spotless. For those that dont know, these amps are remarkable for being reasonably priced, light, and stable down to 2 ohms. There were a number of folks that had some problems with them early on. The fix turned out to be bi annual maintenance of cleaning the ribbon connections. I have never had a single problem with this head. I did unplug and clean all ribbon connections prior to even firing it up and it has been flawless. Other than a few fingerprints which I will wipe off, the head is spotless. Currently tubed with a Mullard. I'll go 310 shipped to lower 48 only please. Thanks. Feel free to PM with me with any questions. THanks for looking.