Who Makes Marshall JMP Master Model MK2 Lead 50W Clones?

[PoorMan]

Which builders are making JMP Master Model MK2 Lead 50W clones these days?

Thanks!

 

[LLL]

That's the 2204 model (2203 is 100W Master Volume)

https://www.ceriatone.com/british-style-jcm800-2204-hw/

 

[PoorMan]

That's the 2204 model (2203 is 100W Master Volume)

https://www.ceriatone.com/british-style-jcm800-2204-hw/

It's on my short list. Is that the JMP or the JCM800 version of the 2204 circuit (perhaps a stupid question since the title says JCM800)? My understanding is the two are slightly different.

 

[LLL]

It's on my short list. Is that the JMP or the JCM800 version of the 2204 circuit (perhaps a stupid question since the title says JCM800)? My understanding is the two are slightly different.

According to the text on the page link I gave you:

The Ceriatone British Style 2204 HW is our take on a timeless amplifier design first introduced in the 1970s.

The 2204 HW 50w amplifier is based on the first €œmaster volume design in the British Series, and became the tonal inspiration for some of the most coveted rock tones recorded.

"introduced in the 1970's" = JMP Master Volume
"first master volume design" = JMP Master Volume

It also says "based on" and "our take"...

If you really want to be 1000% sure, email them. I'm sure they know the circuit differences, if any.

 

[PoorMan]

According to the text on the page link I gave you:



"introduced in the 1970's" = JMP Master Volume
"first master volume design" = JMP Master Volume

It also says "based on" and "our take"...

If you really want to be 1000% sure, email them. I'm sure they know the circuit differences, if any.

Nice. I'll look into it!

 

[NegativeEase]

2204 is my favorite Marshall all time.

 

[dystrust]

It's on my short list. Is that the JMP or the JCM800 version of the 2204 circuit (perhaps a stupid question since the title says JCM800)? My understanding is the two are slightly different.

The circuits of the post-'76 JMP and pre-'85 JCM800 Master Models are almost identical. The '85 circuit change coincides with the change from vertical to horizontal inputs, board-mounted pots and jacks, EL-34s instead of 6550 tubes in the US, and reduced power supply filtering in the 2203 at least (not sure about the 2204). I've never played a horizontal-input JCM800 that I liked, but YMMV.

Ceriatone's amp is probably based on the second JMP Master Volume circuit which was introduced sometime in 1976. The original circuit with actual had high and low sensitivity inputs
was introduced in 1975 and it reportedly didn't sound very good. I've never seen a JMP MV older than '77, so can neither confirm nor deny that's true. I have played a bunch with the 2nd circuit from '77-'81 with JMP badge and '81-'84 with JCM800 branding and they were all generally good but different. There was no rhyme, reason, or apparent trend from year to year so I'd guess the differences were down to component tolerances and aging as all of the amps were at least 20 years old when I played them. The only thing I can say for certain is that these amps are not bedroom-friendly in terms of volume. You didn't necessarily have to play ear-splitting loud to sound good, but loud enough that ear plugs are highly recommended.

 

[NegativeEase]

Also, I'd look at reviews and you tube videos of the various kits out there -as my experience with kits are often they can sound sort of sterile -even after settling in....

Make sure you are buying a kit that has some mojo ya know?