It is B-52 AT with 2 12" speakers. It is an extremely versatile amp because it has a very heavy gain capability as well as a bright mode that sounds great with strumming chords. The amp was purchased from guitar center in 2007 for $900 and has been sitting in a corner since then. The amp has three modes to adjust between a tube amp and a solid state amp, the settings are tube A, tube AB, and solid state. The amp is extremely loud and is more than capable of use in live performances and it still has the ability to connect a cab to it. It is in mint condition and looks brand new. For questions and purchasing information call (616)617-2310. Visit the link to view pictures.