Marshall JCM900 4100 100-Watt Guitar Head - Long & McQuade Music Educator Site
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Marshall JCM900 4100 100-Watt Guitar Head

Departments > Guitars > Guitar Amps > Amp Tube Head > Marshall > JCM900 4100 100-Watt Guitar Head
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Another player's favourite, the JCM900 4100 two channel dual reverb 100W powerhouse will make you stand out on stage. A stylish reissue, the JCM900 4100[trade] is the evolution of the JCM800 adding another channel, two reverb options and two gain features. An amp built to go on the road and be on the stage with a sound loud enough to fill stadiums.

Key Features

• High and low power options mean you can change between 50W and 100W of power.
• Each of the two channels has its own gain and volume settings so that you can crank the gain in the preamp and the volume and get the true loud Marshall crunch.
• This amp has two footswitchable channels, one clean and glistening another with grit and distortion. It has two reverb settings for each channel so you can dial in the reverb ready to perform.
• A series FX loop for is for those pedal lovers. Adapt your sound by adding in the FX you like best.

JCM900 4100 Technical Specifications

GENERAL
Technology: Valve
Channels: 2 (Split)

ELECTRONICS
Output wattage: 100W
Outputs: 2 x 1/4" jack speaker outputs, (1 x 16Ω / 2 x 8Ω / 2 x 4Ω load selectable)
Inputs: 1 x 1/4" jack instrument input
Controls: Channel B (volume, reverb), channel A (volume, reverb), presence, bass, middle, treble, channel B lead gain, Channel A gain
Effects: Reverb
Effects loop: Yes, with level control

VALVES
Preamp valves: 2 x ECC83, 1 x ECC83 (phase splitter)
Power amp valves: 4 x 5881

ACCESSORIES
Footswitch: PEDL-91004 included
Cable: Detachable power cable included, speaker cable included

JCM 9001 of 1 customers found this review helpful

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Product ExperienceI own it
Closest StoreMississauga, Ontario
Just got this amp and cab ,been playing for 30 years never heard such versatility,very underrated which is ok with me ,the JCM 800 had its day but that?s gone now and Marshall replaced with an amp that can play ballads as well as crunch,heavy metal and punk thanks Marshall you know what the people want .
Posted by Gdog on Dec 18, 2018
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Don't believe the rep2 of 2 customers found this review helpful

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Closest StoreVancouver, British Columbia
I've owned both the 50 watt combo and the 100 watt head and both have been indestructible. I jammed/gigged regularly with one for 10 years with no issues. The 900 gets some flack from the Marshall purists because of the solid state gain that it has, but judge it by the sound not the reputation some vintage gear snobs have given it. The 5881 (rather than el34) tubes give it a different, more aggressive and punchy tone than most Marshalls but if you are looking for an amp with sharper, almost Fender like cleans as well as that Marshall crunch and beyond, it's a great amp, and really underrated. Great for any heavy rock, punk, and classic metal sounds.
Posted by anonymous on Apr 8, 2013
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JCM 900 dual reverb 50 watt0 of 0 customers found this review helpful

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Closest StoreEdmonton South, Alberta
I just bought this amp used from L&M for $599 and it is in killer shape. So far in the little time I've owned it it sounds pretty killer. So amount of gain and good tonal control. Probably sound amazing with an overdrive pedal and some delay in front.
Posted by Jeff on Feb 6, 2013
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Epic.5 of 6 customers found this review helpful

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Closest StoreMoncton, New Brunswick
I own one from the 90's. This is the amp for all things rock and metal through the 90's and even a lot of the modern stuff. Not as much gain on tap as a Mesa, but do you really want your riffs to sound like mush? With the gain on 1/2, and a boost of your choice out front, power chord chunk sounds like a cannon going off! Punchy and mean and perfect for cutting through the mix in a band. Also, a little trick: Put a patch cable between the send/return of the fx loop, and dial the fx level until you hear it get louder. At this point the amp goes into destroy mode. Gets even better with an EQ and/or a boost in the loop. WARNING: Only do this if you want to make your band members jealous. One thing to note, is that there is a lot of hate out there for this amp because the EQ is a little odd to use. Dial it in with your ears, not your eyes.
Posted by Ghost on Sep 26, 2012
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Sale Price: $1799.00
Store Special Product - Marshall - 4100
Model: 4100
Serial: M-2016-50-0033-2
Quantity Available: 1
Condition: Used
Store Special Product - Marshall - 4100
Sale Price: $1899.00
Store Special Product - Marshall - REISSUE JCM900 100W HEAD
Model: 4100
Serial: M20165000362
Quantity Available: 1
Condition: Used
Store Special Product - Marshall - REISSUE JCM900 100W HEAD
Sale Price: $1599.00
Store Special Product - MARSHALL REISSUE JCM900 100W HEAD
Model: 4100
Serial: M-2018-0011-2
Quantity Available: 1
Condition: Used
Sale Price: $1799.99
Store Special Product - Marshall - 4100
Model: 4100
Serial: m20163503692
Quantity Available: 1
Condition: Used
Store Special Product - Marshall - 4100 Store Special Product - Marshall - 4100