My uncle gave me a guitar amp but I can't find any information about all I have about is it's an OHM amp It's called graphic reverb model GR100 Combo. I've typed that in on google and I can't find anything so could someone help find info about my amp please.
Quote by RockInPeaceDime
Didn't look very long, but saw a few things about Roland when I looked it up on Google.

That's an effects unit you're talking about.

I'm pretty sure OHM isn't the name, that's the SI for resistance.
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Last edited by Jak Archer at Jul 30, 2008,
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