Very clean and original UK-made Marshall JCM800 4104 50W 2x12 valve combo from the early JCM800 period with the desirable horizontal input layout.

This amplifier has lived a very quiet life and has seen very little actual playing time over the years, mainly because of the sheer volume. Even at low master settings it is incredibly loud and sounds exactly like a healthy vintage JCM800 should.

The amplifier was recently professionally inspected and serviced by ELB-Tech (Hummelo, NL). Work carried out includes:

  • Full inspection
  • Cleaning/service
  • Bias adjustment of the power tubes
  • General health check

The installed Svetlana Winged C power tubes have very low playing hours.

Nothing required replacement during the recent service; the amplifier appears to remain in highly original and healthy overall condition.

Condition is exceptionally clean for its age:

  • original tolex in very nice condition
  • original Celestion G12M-70 speakers
  • original transformers
  • original layout and electronics
  • no extra holes
  • no replacement speakers

The amplifier includes the original Marshall “Master Volume and Lead Amplifiers” handbook/manual.

The amp presents beautifully overall. The only noticeable cosmetic wear is:

  • a small piece missing from one lower front corner protector
  • light cracking on two other corner protectors

All cosmetic details are clearly shown in the photos.

The amp is fitted with matching original Celestion speakers with matching factory markings.

This is not a heavily used touring amplifier, but a very original and well-preserved early JCM800 combo for collectors, studio use or serious Marshall enthusiasts.

Due to the size, weight and value of the amplifier, local pickup is strongly preferred. Shipping may be possible at buyer’s expense and risk, but would require careful packing and full insurance.

Feel free to contact me with any questions or requests for additional photos.

This item is sold As-Described

This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.

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Listed4 days ago
ConditionExcellent (Used)
Excellent items are almost entirely free from blemishes and other visual defects and have been played or used with the utmost care.Learn more
Brand
Model
  • JCM 800 Lead Series Model 4104 50-Watt Master Volume 2x12 Combo
Finish
  • Black
Categories
Year
  • 1984 Approx.
Made In
  • United Kingdom
Number of Inputs
  • 2 Inputs
Power Tube Type
  • EL34
Speaker Configuration
  • 2x12"
Electronics
  • Tube
Reverb
  • None
Color Family
  • Black
Number of Channels
  • 1 Channel
Output Power (Watts)
  • 50

Product safety information may be available here.

H.W. Harwig

Velp, Netherlands
Joined Reverb:2026

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