1 DCBirdMan 1 month ago Ok the JFK era Fender amps (roughly 1960-63 altho seems like blond Bassmans lasted months in to 1964) were mostly brown, blond, and rough white tolex) with a number cosmetically transitional ones as parts were mixed/matched/used up, etc.So my theory was/is that since Ampeg had reverb integrated into the amp first, Fender had to get right on it to compete. Ampeg was a real competitor back then -- Is it safe to say integrating reverb into the amp was a fairly major redesign? So I am guessing then that the stuff we like about brown/blond amp scene (complex tremolo - -some call it "harmonic tremolo" for some reason, and presence control) had to go to accomodate trem. Presence was another knob, the the trem used more tubes. Then it was said in some models (at least my brown Super) there was 1/2 an unused preamp tube that could be wired as an extra gain stage... I remember trying that back in the 90s. Seemed cool enough. So safe to say brown/blond, etc presence and cool trem was discontinued to get reverb onboard?