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1979 Marshall JMP MKII Master 100W Lead Amp Morin Mod Ross Hogarth #34554

Availability: In stock


Quick Overview



BRAND: Marshall

MODEL: 1979 JMP MKII Master 100W Lead

FUNCTION: Guitar Amplifier Head

PRODUCT DESCRIPTION: This listing is for a 1979 Marshall JMP MKII Master 100W LeadAmp Head Modded by Mike Morin. This amp comes directly from the personal gear arsenal of Producer Ross Hogarth. 

This amp was used on records by Coal Chamber and number of other 90's and 2000's era metal bands including Papa Roach, Linkin Park, Korn, Drowning pool, Evenescence, Devil Driver, Sick Puppies and Phil X to name a few. So if you are looking for that particular sound, here it is! 


  • Serial Number: 06749L
  • modded by Mike Morin
  • Tubes:
    • 4 - ARS EL34
    • 4 - ARS LM-12AX7A
  • size: 29" x 12" x 8.5"
  • weight: 46 lbs

ACCESSORIES INCLUDED: This item comes as seen in photos and includes only the following accessories:


  • 1 - The Coffin Case
    • internal: 29.5" x 12" x 9"
    • weight: 21 lbs

PHYSICAL CONDITION: Very Good - The head is solid and everything is intact. The tolex has a few scuffs and 2 small tears along the edges. The connections on the rear panel and controls on the front are in great shape, overall, it's in very good condition.

WORKING CONDITION: Excellent - All control knobs turn smoothly, without crackle or cutouts, and they each work perfectly. The push/pull preamp knob switches perfectly as does the added mod knob to the far right of the front panel. Both inputs, the rear-panel impedance selector switch, and the I/O jacks are all working great. Overall working condition is excellent. 



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