1988 Marshall jcm800 4210 50-watt master volume channel switching 1x12 combo in very good condition. Everything works and sounds like your typical jcm800 with EL34s, very aggressive attack! (also very loud haha)


I do not have the foot switch (easy to find online, $70 for new one from Marshall) the amp is in the boost channel by default and reverb is on (can be adjusted and turned off completely via reverb knob on front)


Serviced by Renberg Amp Repair in Long Beach April 2026, recapped, all tubes replaced and biased, all original and very clean inside.


Amp is in Redondo Beach, additional photos upon request, all sales final

This item is sold As-Described

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Listed3 months 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 4210 50-Watt Master Volume 1x12" Combo
Finish
  • Black
Categories
Year
  • 1988
Made In
  • United Kingdom
Number of Inputs
  • 1 Input
Power Tube Type
  • EL34
Number of Channels
  • 2 Channels
Built-In Effects
  • Built-In Effects
Speaker Configuration
  • 1x12"
Electronics
  • Tube
Effects Loop
  • Effects Loop
Color Family
  • Black
Reverb
  • Spring Reverb
Direct Output
  • Direct Output
Output Power (Watts)
  • 50

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Chez Beauregard

Redondo Beach, CA, United States
Joined Reverb:2026

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