1960's Ampeg Portaflex SB-12

As part of the iconic Portaflex lineup from the '60s, the Ampeg SB-12 features the unique flip-top design as seen on other amps like the popular B-15N. The SB-12 was designed to complement Ampeg's Baby Bass upright bass model and ran with 22 watts through a single 12-inch speaker. With only three control knobs, the smaller SB-12 offered a definitively simpler design than the larger Portaflexes. 

Years of Production: 1965 - 1971

Electronics: Bass and Instrument inputs, 22 watts, 12-inch speaker

Controls: Volume, Treble, Bass

Notable Players: Chuck Rainey, Marcus Miller

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