In a 1959 Super Lead the first valve (V1) or half of the first valve (V1A) (I can never remember for sure) supplies gain to Vol 1, the second pre amp valve (V2) or second half of the first valve (V1B) supplies gain to Vol 2 the normal channel. You can jump the 2 channels together with a patch lead to blend the normal channel (Vol 2) in to warm things up a bit. The way you distort those old Marshall is to crank usually Vol 1 which is the bright channel, as I say you don't have a pre gain and master volume on these just one volume per channel. Thank you for clarifying this!ĭon't take this as gospel but the quick reading I did on his amp for Dookie this morning indicates that he used a modified Marshall Super Lead.Īn old 1959 Marshall Super Lead with the 4 inputs has no master volume, just a Vol 1 and 2 to control the volume of the Bright and Normal Channel respectively. That probably explains why I haven't been finding that tone as easily as I thought I could. I thought a JCM800 was the starting point, and that gain was added from there. So unless you are after a profile of the specific mod on a 1959 Super Lead done by was it Bob Bradshaw I'm reading? a decent JMP 2303 or JCM800 profile should be all you need unless Billy Joe's amp was more than just as cascading gain stage mod. Just been looking into this as I was unsure as to what a cascaded mod JCM 800 for the Dookie album was, seeing that a JCM 800 already has cascading gain stages same as any Marshall 2203 JMP Master Volume post late1976 would do (it's essentially the same amp in a different head shell)įrom what I'm reading Dookie was a modded Marshall 1959 Super Lead, which is a non master volume amp when stock, which would need a pre phase master volume and the pre-amp gain stages cascaded to make it sound very similar to a JCM800/JMP 2203, this is a very common mod for non master volume Marshall's to get more pre amp gain and saturation at lower volumes.
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