1976 100 watt Marshall JMP Super lead vs 1977 JMP Super lead.

[themeansr]

1976 100 watt Marshall JMP Super lead vs 1977 JMP Super lead.

I’m am going to try it out this coming Friday. He stated that it was moded by David Bray for the master Volume. This will go well with my Roadster if it works out. I really appreciate everyone’s input. I’ve been running away from Marshall’s most of my life just to realize it’s the Tone I have been searching for.


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[LLL]

Re: 1976 100 watt Marshall JMP Super lead vs 1977 JMP Super lead.

I'm pretty sure all 2203s & 2204s have the master volume before the phase inverter; I don't recall ever seeing a double pot inside one.

Right. For some reason (and that's what I thought it was) the earliest JMP MVs aren't as coveted as the later (say '77-'79) for some reason that I can't remember.

IIRC Marshall made some improvements.

 

[LLL]

Re: 1976 100 watt Marshall JMP Super lead vs 1977 JMP Super lead.

I’ve been running away from Marshall’s most of my life just to realize it’s the Tone I have been searching for.

Never run from a (now) vintage Marshall. :fing2:

 

[Ayrton]

Re: 1976 100 watt Marshall JMP Super lead vs 1977 JMP Super lead.

David Bray knows what he is doing around the inside of an amp. I hope it works out for you.

 

[themeansr]

Re: 1976 100 watt Marshall JMP Super lead vs 1977 JMP Super lead.

David Bray knows what he is doing around the inside of an amp. I hope it works out for you.

Me too. Hopefully the Mesa and the Marshall will end my tone quest.... well for at least a few months...[emoji2]


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[GilmourD]

Re: 1976 100 watt Marshall JMP Super lead vs 1977 JMP Super lead.

Right. For some reason (and that's what I thought it was) the earliest JMP MVs aren't as coveted as the later (say '77-'79) for some reason that I can't remember.

IIRC Marshall made some improvements.

The real early 2203 and 2204 amps were basically the 1959 and 1987 with two less inputs and a master volume. They didn't cascade the two halves of V1 into each other but rather had them in parallel.

 

[dystrust]

Re: 1976 100 watt Marshall JMP Super lead vs 1977 JMP Super lead.

The real early 2203 and 2204 amps were basically the 1959 and 1987 with two less inputs and a master volume. They didn't cascade the two halves of V1 into each other but rather had them in parallel.

The high and low inputs also had different input impedance IIRC.

 

[Ayrton]

Re: 1976 100 watt Marshall JMP Super lead vs 1977 JMP Super lead.

I’m am going to try it out this coming Friday.

So what happened?

 

[Zombiwoof]

Re: 1976 100 watt Marshall JMP Super lead vs 1977 JMP Super lead.

I have seen some Marshall heads from the transition era that have 4 inputs and a stock master volume control. What are those and how common are they?. I've wondered about those for years.
Al

 

[themeansr]

Re: 1976 100 watt Marshall JMP Super lead vs 1977 JMP Super lead.

So what happened?

Dude flaked out.


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