Explore Neural Amp Modeler (NAM) profiles of the iconic Fender Bassman, the amplifier that revolutionized rock and roll. Originally designed in 1952 as a bass amplifier, the tweed Bassman quickly became a guitar amp legend, featuring the classic 5F6-A circuit with 4x10" speaker configuration. Its rich, warm overdrive and dynamic response made it the blueprint for the Marshall stack and countless other amplifiers. Used by blues masters like Buddy Guy and rock pioneers from the '50s and '60s, the Bassman delivers everything from sparkling cleans to that perfect edge-of-breakup tone that defined early rock, blues, and country music.