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Old 11-06-2009, 05:00 PM   #2 (permalink)
MajorNut1967
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Re: Getting the most out of my JMP Superbass

Quote:
Originally Posted by Dewey Finn View Post
Hi. I have a 79 JMP MKII Superbass that I would like to get a much more aggresive sound out of. It currently has a Master volume mod and a Jumped input mod. I don't care for the jumped input tone as it seems buzzy. I don't think it needs an added pre amp tube but who knows. Are these amps solid state rectified? Would a valve rectifier add more overall balls? I was also thinking of a half power mod as the amp is LOUD and I can't open it up at the gigs we play. Any suggestions would be awesome.
Well you couldn't install a Valve Rect. in that amp without changing the Power trans. You need a AC output for the Rect. tube! The are ways around it but its a bit off work and you will need a separate filament trans. with a center tap.
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