This is a Marshall 8100 in very nice shape. It is the amp that Chuck Schuldiner used for the legendary band Death. It is an S-tier amp for death metal as it has the warm breakup of a tube pre-amp and a solidstate power section for lightning fast dynamics. It was also the primary high gain amp on Definitely Maybe by Oasis, so it is not a one trick pony. I think the clean sounds nice too. It is made in England and is a wonderful high gain amp and it is in great shape for it's age. You can see a picture of the board in the photos. I have also included a link to a youtube video of this exact amp showing that everything works on it: clean and crunch on the normal channel; OD1 and OD2 on the Boost channel; reverb and effects loop. The only things that show wear on it are the tolex has some small tears which you can see in the photos and the master volume pot has two hitches in it when turning it, but it functions fine and doesn't crackle or make noise at the hitches. The entire board, pots, connections, and switches have been cleaned with contact cleaner. Thanks for looking!