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The Marshall Amplification JCM900 was the next evolutionary step on from the JCM800. The 4100 is a precise reissue of the JCM900, first launched in the early 1990s.

This high gain, dual reverb, all-valve 100 Watt head is still a players’ favourite. Known for its tone and workhorse roadworthiness, the JCM900 4100 has many fans due to its feature set and versatility.

Channel A is voiced to be sparklingly clean on lower gain settings, building to a raunchy crunch when driven harder. Channel B takes the gain higher producing tones from silky smooth distortion to searing, saturated scream.

The JCM900 4100 is equipped with a series FX loop with its own level control for use with rack FX or stomp boxes.


Marshall JCM900 4100 Specifications:


  • Model: JCM900 4100
  • Range: Vintage
  • Technology: Valve
  • Channels: 2
  • Wattage: 100w
  • Inputs: 1
  • Controls: Presence, Bass, Middle, Treble, PreampX 2, Master X 2, Rev X 2
  • Pre Amp Valves: 2 X ECC83
  • Power Amp Valves: 1 X ECC83, 4 X 5881
  • Footswitch: Yes
  • Cables: Power/Speaker
  • Weight: 18.8 kg
  • Dimensions (WxHxD):  750 x 310 x 210 mm
  • Effects: Reverb
  • Effects Loop: Yes
  • Master Volume: Yes
  • Pentode/Triode Switch: Yes
Current Stock:
57.30 LBS
30.00 (in)
13.00 (in)
9.00 (in)

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