In 1963, history was made with the release of the Silvertone Twin Twelve Amplifier. Originally listed in the sears catalog as the 1484, the Twin Twelve was offered from 1963 to 1967 and became the most coveted of all the Silvertone amplifiers. The unique sound of this amplifier proudly powers the tones of many of todayâ,s best rock icons such as Jack White, Dave Grohl, Beck, Billie Joe Armstrong (Green Day), Dan Auerbach (The Black Keys) and many more. Today Jackson Audio and Silvertone make history again with the introduction of the 1484 Twin Twelve Pedal. An exact recreation of the legendary Twin Twelve amplifier, the 1484 Twin Twelve Pedal can be used as a studio grade preamp, booster, EQ or overdrive depending on how the controls are set. Bring back the classic Silvertone clean and overdriven tones and own the tone of legends. Relive history with the 1484 Twin Twelve Pedal. Controls: Volume, bass, treble, gain.