Marshall JMP-1 Preamp - in the year 1992

Marshall JMP-1 Preamp

Which artists do I know of that use or have used a JMP-1?

Dave Murray (Iron Maiden)
Mick Thompson (Slipknot)
Vivian Campbell (Def Leppard)
Phil Collen (Def Leppard)
Billy F. Gibbons (ZZ Top)
Jannick Gers (Iron Maiden)

OD-1/Classic Overdrive channel – smoldering power will take you from a Super Lead Plexi’s molten gold through to searing modern metal.
OD-2/Modern Hi-Gain channel – tightly focused high gain drive by the truckload. Modern and aggressive, yet fluid and toneful, this stunning channel will give you all the distortion and sustain you’ll ever need.
Clean 1/Warm, Clean channel – for warm, full bodied chords, fat clean lead passages and jazz tones.
Clean 2/Bright, Clean channel – has the glassy edge of a JTM45 and will give all of the bright, jangly tones you could wish for.