Adding a master volume control

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tydthomson
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Joined: 2008-06-06
Adding a master volume control

Someone on this forum mentioned doing this. I read on a Marshall forum that this is a very bad idea. We've consulted a master ampsman/electrician who marked how to add it on the schematic and we have all the parts needed. Does anyone know if this is a bad idea?

aldersmoke1
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Joined: 2008-05-07
master volume

I don't see why this would be bad idea at all, provided your tech knows what he's doing. I actually have a PA-2000 Stagemaster head, and it is basically the G-2000 with 4 preamp channels instead of 2. However, since it was intended to be a PA head, it already has a master volume. The other commenter is right; with the preamp dimed, you can get some awesome saturated sounds out of it, and it also cleans up very nicely. In my case I modded one of the 4 channels for more gain (why not? Got three more channels...lol), and I'd put it up against anything for heaviness; "Volume 4," anyone?

But yeah, I can attest that having a master volume really opens up the possibilities of these 2000 series Earth heads. I'd go so far as to say what you end up with is an amp that can go from Fender to Marshall to back again.

frank the crank ny
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Joined: 2007-12-30
master volume

ty, Frank here .
My Earth g2000 has a master volume that someone before me put in. I have not opened this amp up since 1979 so I cant tell you how it is wired. I love the master volume. I cant imagine the amp without it. With the volume turned to 10 , and the master volume down , the warmth of the sound is un-describable. Turn the master up about 1/3 of the way up you get controlable feedback. turn the master 1/2 way up , still with the volume at 10 , the house is ratteling. When you turn the volume to about 3 and the master to a desired volume , the sound cleans up real nice . I stongly recommend you have it done . I've been useing this amp almost 30 years. Never a problem, never even changed a tube! As a teenager I litterly pushed this amp over a mile to get to the drummers house. Its been banged around , and never a problem. I have several amps (one a pre ww2 gibson) . The earth makes a statement man. Do the work. Nothing like having pre and post gain.

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