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I had a Rat of indeterminate age back in the day. In front of my JCM800 - I had the regular channel turned up to crunch and used it instead of the boost. I thought it was rad at the time. Soooo long ago though.
Never got on with the Tubescreamer. Marshall Guv'nor was aces.
Jung-
I had a Rat of indeterminate age back in the day. In front of my JCM800 - I had the regular channel turned up to crunch and used it instead of the boost. I thought it was rad at the time.
This is where muffs shine too. JCM800s (or equivalent big old Orange / Matamp / Laney / Sunn etc) on a crunchy setting, using the rat / muff to push it up to distortion. Mix with heavy strings and detuned guitars for maximum doom. You can hang on a single note for ages, which is why I think those stoner guys love the combo so much.
ReekBlefs
I only recently got a Rat as well. Was just curious to try it. It does great 80s metal sounds and I can get a passable Iommi impression out of it too. You have to keep the filter cranked to tame the high end or it just fizzes out.