Marshall Super Bass

The Marshall Super Bass is a 100-watt tube amplifier head introduced in the late 1960s, originally designed for bass guitar but sharing circuitry with the Super Lead guitar head. Its key difference is a modified tone stack that delivers greater clean headroom at high volumes — making it attractive to rhythm guitarists who need punch and presence without excess gain. Malcolm Young of AC/DC used a 1971 Marshall Super Bass as his primary amplifier throughout the band's career, prizing its clean, percussive attack for the rhythm tone that underpinned AC/DC's sound.