DESCRIPTION: Facts and details of the Rivera TBR-5 All-tube Stereo Power amp. The TBR's have a long history and have been used by professional guitar players such as Steve Lukather, Michael and Rudolph Schenker (Scorpions), Jerry Garcia, John Sikes (Whitesnake), Chet Atkins, Jason Bieler (Saigon Kick), Skid Row, etc.