Up for sale: a Marshall JCM 900 Model 4100, the 100-watt "Hi Gain Dual Reverb" head that became a defining rock and metal tone of the 1990s. This unit comes from a professional production company's touring backline and has been stored and transported in its road case for protection.

The JCM 900 4100 is a 2-channel, all-tube 100-watt head (switchable to 50W), built around a 7-tube chassis with dual spring reverb — a rare and sought-after feature not found on the standard JCM800. Channel A offers classic Marshall crunch, while Channel B's Lead Gain circuit delivers the searing high-gain tone that made this amp a favorite of artists across rock, punk, and metal. Rear-panel features include an effects loop, direct/recording-compensated outputs, and switchable high/low power modes for stage or studio use.

Included:

  • Marshall JCM 900 Model 4100 amp head
  • Power cable
  • Road/flight case

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Listed2 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 900 Model 4100 Hi Gain Dual Reverb 2-Channel 100-Watt Guitar Amp Head
Finish
  • Black
Categories
Year
  • 1990 - 1999
Made In
  • United Kingdom
Electronics
  • Tube
Color Family
  • Black
Reverb
  • Spring Reverb
Output Power (Watts)
  • 100

Product safety information may be available here.

SWP Sales

Anaheim, CA, United States
Joined Reverb:2026

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