The analogues use a 610 cab? The whole Fender set up looked modern to me like one of their 300 watt tube bass amps that look like an old blackface amp. Fender Super Bassman maybe with this: Fender Bassman 610Neo cab? ... ...
Looks to me like Bart uses an approximately 36" tall 610, though my visual calibration ain't what she used to be.
... ... Looks like Paul gave it up the '64 mid 67 then the others shared it, I know McCartney used a silverface Bassman later on for at least their last couple of albums, he used it on the rooftop. ... ...
The silverface Bassman amp was just 50 watts and not only were the standard (non-JBL) speakers not-so-hot, but the cabs back then weren't tuned at all. The 2x12" Bassman cab Paul used was probably about 40" tall back then, which looks to me about right here.
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