1976 Fender Super Six Reverb

This very cool and very rare amp was made briefly by Fender in the early to mid 70’s. The 6 10” speakers are an unusual orientation that produces a unique sound. The circuit is basically the same as the CBS designed 100 Watt amplifiers of the era like the Dual Showman, Twin Reverb, Super Reverb and Vibrosonic Reverb.

This amp had been heavily modified in an attempt to bring it to “black face” specs. The preamp’s phase inverter had a ton of extra gain added to it, along with the output section being converted to lower wattage 5881’s and biased extremely hot. This resulted in the amp not sounding very much like the big, clean, high-wattage Fender it was meant to be. It had a nasty crossover distortion with almost no clean headroom. The tone stack had also been modified to limit the bass response and prime the amp for gain.

This amp was taken back to original factory spec and fully de-modified to give it back that classic Fender clean headroom and slight surf rock grit. All new (in spec) resistors for the phase inverter gain stage and original cap values in the tone stack were soldered in. The Bias filter cap was re-installed to lower noise and a mallory film cap was put in parallel with the LDR roach to cure the very loud tremolo tick that was happening. The 6L6GC’s were put back in and the Fixed Bias set to an era appropriate 60% Class AB Plate Dissipation with a B+ of 430VDC.