Fender Tone Master '59 Bassman 4x10" Electric Guitar Amplifier, 120VAs part of the groundbreaking series, the Fender Tone Master '59 Bassman dials in to deliver authentic tube tonality with digital technology. While the Tone Master series has already brought itself to Reverb and Princeton series amps, this new development takes on a new challenge create the authentic tube sounds of one of Fender's most famously dirty amps. Four ten inch speakers and no tubes within care to take the plunge? The original Fender Bassman