JTM 45/100 vs 1986 JMP 50

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Gio
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JTM 45/100 vs 1986 JMP 50

Post by Gio » Wed Jan 18, 2017 6:15 pm

Hey guys,

New here, but have been reading for a few years. I currently have a JMP 50 Bass spec clone and am considering getting another Marshall flavored amp. I am big Kossoff fan but also like Cream, Doyle Bramhal II, Hendrix, the usual suspects. I have been drawn towards the JTM 45/100. But have never had a chance to play one.

I am curious how much overlap there would be between my current 1986 and a JTM 45/100? I don't really like to have redundancy, but if they are different enough, I'd go for it. Also, thoughts on the Dickinson mod to make this more/less different from the 1986?

Thanks for your help guys!

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wdelaney72
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Re: JTM 45/100 vs 1986 JMP 50

Post by wdelaney72 » Wed Feb 01, 2017 12:06 pm

In my humble opinion, the most notable difference is in KT66 v. EL34. Your JMP50 has EL34 tubes.

If you have a JMP 50W amp and went to get closer to Cream / Hendrix type stuff, you are leaning correctly toward the JTM 45/100. You will not be disappointed. These amps are warmer and have more high end sparkle thanks to the KT66 tubes, yet they don’t get too overly fender saggy.

I recently had a potential customer over. My intention was to go chronological, so he started with my JTM 45/100 and was blown away. He then played my 12xxx build, followed by my Bassman build. He liked all three for different reasons (as does anyone with a decent ear) but had no problem deciding the JTM 45/100 was exactly what he wanted. Interestingly, he wasn’t looking for the Cream / Hendrix thing…he’s a big John Frusciante fan and was getting some AMAZING Chili Peppers tone.

The 12xxx is and always will be my personal favorite, but the JTM 45/100 is a great compliment. Tight enough to be a Marshall but less hair and really full tone. George did us all a favor by bringing that circuit to our attention.
Walter

"There's no great thing in being a soloist. I think the hardest thing is to play together with a lot of people, and do it right." - Angus Young, 1984

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NY Chief
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Re: JTM 45/100 vs 1986 JMP 50

Post by NY Chief » Thu Feb 02, 2017 4:03 pm

wdelaney72 wrote: George did us all a favor by bringing that circuit to our attention.
that fkkkrrr :D
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wdelaney72
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Re: JTM 45/100 vs 1986 JMP 50

Post by wdelaney72 » Fri Feb 03, 2017 8:31 am

Damn, Chief....I'm glad you're still here. Only a few of us lingering around!
Walter

"There's no great thing in being a soloist. I think the hardest thing is to play together with a lot of people, and do it right." - Angus Young, 1984

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Re: JTM 45/100 vs 1986 JMP 50

Post by Roe » Fri Feb 03, 2017 12:16 pm

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Super 100 amps: 1202-119 & 1202-84
JTM45 RS OT JTM50 JMP50 1959/2203/34/39

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NY Chief
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Re: JTM 45/100 vs 1986 JMP 50

Post by NY Chief » Tue Feb 07, 2017 3:26 pm

wdelaney72 wrote:Damn, Chief....I'm glad you're still here. Only a few of us lingering around!
Oh, yeah!! Still here.

New firewalls at work. Sometimes I get in, sometimes not. :D
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