'65 Twin Reverb'65 Twin Reverb RI?? Excellent condition 85 watts Dual 12" Jensen?? C 12K speakers Dual channels (normal, vibrato) Fender reverb and tremolo ("vibrato") Tilt back legs Classic Fender look SPRING REVERB Among their many fine sonic attributes, Fender guitar amps like this one are prized in particular for their luscious spring reverb. For that wet, shimmering ambient sound ranging from subtle to cavernous, Fender lets you dial it in exactly to taste.