Catalinbread Topanga Spring Reverb - UsedThe Catalinbread Topanga Spring Reverb is based on the sixties outboard Fender spring reverb units. These units differed tonally from the in amp ones since the reverb would be driven by the front end of the amp providing a more intense sound. The Topanga is meant to emulate that specific sound, while also giving you control of a discrete preamp to push the front end of an amp harder. This unit is in excellent condition with no blemishes and has Velcro