Mesa Boogie 90s Dual Rectifier Standard Guitar Amplifier Head, Black Bronco1992 was a different time not wildly different though, especially when it comes to the Mesa Boogie '90s Dual Rectifier Standard head! Way back when in the mythical time of 1992, Mesa caused a sea change in rock and metal tube tone with their Dual Rectifier Solo model tube head. All these years later, and the indispensable tones of pure, early '90s Mesa Boogie tube tones have yet to lose their luster. Today's '90s Dual Rectifier Standard revives the