Marshall JMP-1 - Pierre Schwartz

Evil Guitars


Ibanez Jem10th


Marshall 1959 SLP
Marshall 1965a cab
Line 6 relay G90
Marshall JMP-1
Marshall JCM 800



Marshall JMP-1

I actually got 2 af these preamps. The one lost its midi control interface så i was unable to control it from the midiboard pedal.

It works fine manually though. The one listed in pices below is the newest one i got.

The tubes has been replaces (original Marshall ECC83/81 pre-amp tubes with Grove Tubes GT12AX7R ECC 83/7025)

The one tube is used for clean sound and the other for overdrive (OD1/2) sound

(if one blowes, you can either only use the clean or the OD1/2 channel )

Hit the pics for larger pics



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