The Guyatone Reverb Custom is a rare 1970s Japanese-built take on the classic Fender Twin Reverb — delivering huge clean headroom, lush spring reverb, and unmistakable silverface-era styling. Often loaded with 6L6 power tubes and dual 12" speakers, these amps are prized for their warm, glassy cleans and slightly darker, smoother character compared to an original Twin. Built during Japan’s golden era of “lawsuit” copies, the Reverb Custom has become a cult favorite among players chasing vintage Fender tone with its own unique personality and mojo.