Feedback/Super Reverb

A Super Reverb is not the same as a 4-10 Bassman.  The circuit is not the 
same.  The Silverface Supers use a different biasing system for the 
preamp.  The speakers aren't alnico 5 and therefore sound radically 
different than the later ceramic Jensens.  The output transformer is a 
plastic bobbin type and much less efficent than the older Triad types 
used in the Bassman.  The reverb exaccerbates feedback problems.  The EQ 
on the tone controls isn't the same.  The Super lacks a presence 
circuit.  Presence gives you bite without feedback.  To compare the 2 
amplifiers directly is unfair and misleading.  A Bassman at 3 is 
seriously loud.  That's not true of a Concert another 4-10 Fender 
amplifier of the same era.  I don't own a Super so I can't say for sure 
but I expect that they're more like the Concerts than the Bassman.  The 
only thing you could say about the 3 amplifiers is that they're all 
4-10's made by Fender.  FJM

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