S.O.B. Limit control

Pre Recto days. Boogie modified Fenders, Mark I-IV, Dual Calibers, etc

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Bottle Rocket
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Joined: Fri May 24, 2019 2:58 am

S.O.B. Limit control

Post by zjdrummond » Fri May 24, 2019 9:03 am

I have been researching old boogie amps. Kind of like the idea of grabbing one for that loud, mean, clean thing that they can do. Came across the S.O.B. and wondered about the limit control. What was that about? Is it an actual limiter dynamics processor, or just an attenuator aimed at reducing output level to keep your super distorted sounds from blowing your eardrums out?

Mark III
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Joined: Tue Apr 17, 2012 10:01 am

Re: S.O.B. Limit control

Post by bgh » Tue May 28, 2019 10:35 pm

I bought an S.O.B. back when they first came out. So, my memory may not be all that well.

The limit control was kind of weird. I left it on 0 most of the time. If I recall, it's purpose was to starve the PI (Phase-Inverter). At 0, it doesn't do anything. As you turn it up, it starves the PI more and more - kind of like a "reverse gain".

I don't think I ever got it sound good with the limit value off of 0.

Hope this helps.
Lefty guitars: Gibson SG standard (1977) • Gibson LP custom (1979)
Amps and such: Mesa Boogie Mark IV-B • Mesa Nomad 45 • Mesa TA-30 • Effectrode Blackbird • Kingsley Jester • AMT SS-11a • Zoom G5

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