Marshall JMP Solid State Schematics

Although these aren’t tube amps, these amps are still (a small) part of the Marshall story. They were Marshalls first venture into solid state country. These amps weren’t particularly good sounding or popular.

Information and pictures of these amp are scarce at best, so if you have any info and/or pictures you wish to share, please send me an email.

1994 JMP 100W Slave, 100W PA Slave head

This PA slave amp was in production only in 1973.

Photograph of a JMP 1994.

2077 JMP Bass 100 Solid State, 100W 4×12″ combo

This amp was in production from 1973 up to 1978. It was one of the first all transistor Marshall combos. It was the Bass model of the 2078. It has two channels and an effects loop. These amps were fitted with four 12″ Celestion G12M Bass (55Hz) speakers.

Photograph of a JMP 2077.

2078 JMP Lead 100 Solid State, 100W 4×12″ combo

This amp was in production from 1973 up to 1978. It was one of the first all transistor Marshall combos. It was the Lead model of the 2077. It has two channels and an effects loop. These amps were fitted with four 12″ Celestion G12M Lead (75Hz) speakers.

Photograph of a JMP 2078.

2098 JMP Lead, 100W head

This amp was in production from 1975 up to 1977. It was one of the first all transistor Marshall heads. It was meant for use with a 2412 cabinet. This was the head version of the 2200 Master Lead Combo. Even though this is solid state amp, it still sported an output (self) transformer.

Schematic of the pre amp, (Marshall).

Schematic of the power amp, (Marshall).

Photograph of a JMP 2098. Thanx to Richard Hinton.

2099 JMP Bass, 100W head

This amp was in production from 1975 up to 1977. It was the bass version of the 2098 head. It was meant for use with the 2212 cabinet.

Schematic of the amp, (Unicord).

Photograph of a JMP 2099. (Thanks to Bent Egner)

2195 JMP Lead & Bass, 100W head

This amp (and cabinet) was in production from 1976 up to 1980. It was an all transistor Master Volume amp. The 2196 cabinet was the designated companion for this head.

Schematic of amp, (Marshall, 1998).

Photograph of a JMP 2195 on a JMP 2196 cabinet.

Photograph of a JMP 2195 top. (Thanks to Christos)

2199 JMP Master Lead Combo, 30W 2×12″ combo

This amp was in production from 1976 up to 1980. It was an all transistor Master Volume amp. It was fitted with two 12″ Celestion G12L T1632 8Ω speakers.

Schematic of the amp, (Marshall).

Photograph of a JMP 2199. Thanx to Sam.

2200 JMP 100W Lead Combo, 100W 2×12″ combo

This amp was in production from 1976 up to 1980. It was an all transistor Master Volume amp. This was the combo version of the 2098 Master Lead head.

Schematic of the pre amp, (Marshall).

Schematic of the power amp, (Marshall).

Photograph of a JMP 2200. Thanx to Cyril.

2201 JMP Lead & Bass, 30W 2×12″ combo

This amp was in production from 1975 up to 1977. It was an all transistor amp. It is said that these amps were only available through mail order.

Photograph of a JMP 2201.

2205 JMP Slave 100, 100W PA Slave head

Photograph of a JMP 2205.

2299 JMP Master Lead Reverb, 30W 2×12″ combo

This amp was in production from 1976 up to 1980. It was an all transistor Master Volume amp with a reverb. It was fitted with two Celestion 12″ G12L T1632 8Ω speakers.

Photograph of a JMP 2299.

2196, 2×12″ 100W 4Ω cabinet

This cabinet was in production from 1976 up to 1980. It was the companion for the 2195 head.

2412, 4×12″ 150W cabinet

It is claimed that these cabinets were fitted with four 12″ Eminence speakers and had an impedance of 16Ω. It was the companion cabinet for the 2098 head.