From the personal collection of Joe Bonamassa, this is truly one of the “holy grail” vintage amplifiers! An extremely rare piece of music history! With fewer than 70 amps made, the Echosonoic has become one of the most famous and sought after amplifiers thanks in part to its early use by Rock n' Roll pioneers like Scotty Moore on the genre defining Elvis Presley Sun Recordings. With a fully functioning foot switchable tape echo unit built into the amp, this design was years ahead of its time, and continues to deliver the distinctive “slap back” delay tones so integral to rockabilly guitar. These almost never appear for sale!