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

[themeansr]

I have an opportunity to buy a 77 JMP Super lead with the MV mod. I can’t find any info on that year but plenty on the 76. All the sounds I heard from the 76 sound amazing. Are these completely different tones or would they compare?


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[Ayrton]

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

Basically the same amp, however, little things can affect the final sound. I own several early '70's Superleads and they all have their own personality. Can you try out this amp with your own guitar? Ultimately what really matters is how it sounds to you.

[themeansr]

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

I can try it with my guitar. is the difference that the 76 is a plexi and the 77 is a metal face?


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[Ayrton]

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

The term "plexi" refers to the plexiglass front panel Marshall used until 1969. Starting around 1970 the front panel was metal.

There is no significant difference between '76 and '77 models.

You might want to read up on some Marshall history.

https://reverb.com/news/a-history-of-marshall-amps-part-i

https://marshallamps.com/live-for-music/news/history-1959slp-plexi/

[Ayrton]

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

I would also ask what type of music do you like to play? What kind of sound are you looking for?

Where are you located and is the price comparable to your market?

100 watt Marshalls from the '60's and '70's can be temperamental and may not offer the tonal range some players want or need.

A good MV certainly can make all the difference, and there are some modders out there who tweak Marshalls (or like circuits).

[themeansr]

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

Is it me or was there no information about Marshall’s after 73 in the articles?


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[themeansr]

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

I play metal/ hard rock. I like a good grind also with an organic flavor and a somewhat tight bottom end but not too modern. Tool , System of a Down, AIC, Nirvana are my favorite bands. I’m in The Northwest. This one was a non MV that was modded to have the MV in the back of the amp. No holes drilled.Thank you for your responses btw.


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[Ayrton]

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

That is because everything after 1973 is crap...
































(I kidd, I kidd)... The 1959 design is basically the same from '67 to '73. The biggest change was going to the printed circuit board mid way thru 1973 (however the sound and design remained until '75-'76). The tubes changed from EL34s to 6550s around that time as well (my memory is foggy) I think there were some cosmetic changes in the '76-'77 range, but if I recall correctly the factory MV started in 1976 (ish).

I will never tell you not to get a classic Marshall ( I have several and love them all like children), but they are not all in one wonders with channel switching and effects loops. Super tight "chugga chugga" is not what they do (you may get what you want with pedals of course). Tone is subjective. One man's bright is anothers cut.

Try it out and see what you think.

[themeansr]

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

Thx. I have a Roadster that can chug if needed. I’m looking for tone.


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[Ayrton]

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

Clapton says "the tone is in the trousers" (but he used Marshalls)

Only you can decide if you like what you hear. You can't go wrong with a Les Paul thru a Marshall in my opinion. I play strats, teles, Les Pauls, Jags/Jazz, everything thru mine and have no complaints.

Of course, I hoard gear like an old lady does cats.

[themeansr]

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

https://youtu.be/LUf551mWkrk

Looking for this tone


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[Ayrton]

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

https://youtu.be/LUf551mWkrk
Looking for this tone


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You will love the JMP then. Play it and have it checked out to be certain there is no monkey business inside

[MetalManiac]

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

In 76, they put out a 50 watt "non cascaded" version MKII / JMP (?) that a lot of people try to avoid, so be aware of that. Don't ask me what non cacaded is- it has something to do with the way the preamp is designed. You'll be fine with the 100 watter.

[dystrust]

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

In 76, they put out a 50 watt "non cascaded" version MKII / JMP (?) that a lot of people try to avoid, so be aware of that. Don't ask me what non cacaded is- it has something to do with the way the preamp is designed. You'll be fine with the 100 watter.

He's looking at a Superlead that was modded to have a master volume, so that doesn't apply. The non-cascaded preamp you're talking about is from the first generation 2203 and 2204 from '75 and '76. I don't remember how it worked, but the high and low sensitivity inputs were literally that. Many players weren't happy with the tone, and it was redesigned for '77. The 2nd generation 2203 and 2204 bypass the first preamp gain stage when using the low input.

[allbutromeo]

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

Is it me or was there no information about Marshall’s after 73 in the articles?


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There's allot of good info in here

https://solodallas.com/the-vintage-marshall-guide