Marshall JCM900 4100 100-Watt Guitar Head

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SKU: # 3755
Model: #

4100

Your Price: $3,499.99 CDN

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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™ 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

Marshall cheeped out on this one0 of 1 customers found this review helpful

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Product ExperienceI own it
Closest StoreToronto (Bloor St.), Ontario
I owned a 900 for many years and getting rid of it was good decision.
Don't make the same mistake I did.
You will not find warm satisfying tube distortion on this amplifier.
The clean channel is always overly bright and the drive channel sounds like stomp box distortion.
Posted by Jk on Sep 26, 2021
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To me its simply the best amp head ever1 of 1 customers found this review helpful

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Product ExperienceI own it
Closest StorePort Coquitlam, British Columbia
I own the 1993 100 watt version and I always get tubes replaced every so often. I play in a working classic rock cover band and a heavy original band. From an Eagles song to Metallica (or whatever,) this thing has you covered. I never touch the clean channel, I just dial in the pre amp to 5 or 6ish and turn my guitar down a bit for a Beatles song for example. For a heavy tune crank the pre amp and use the yellow boss pedal for a boost if needed (but isn't really, I use the boost to solo when the pre amp turned down or simply turn my guitar up) - but regardless of a boost your DONE 1000 percent! The reverb is huge too I only need it on 2 or 3 as its big. I'm a working rock player and fussy as hell with amp tones but this is THE ONE for life for me (and you need a quality 4x12 cab to go with.) Also I rented the new re-release model while mine was having tubes replaced and it sounded identical to me!
Posted by MULLDOON on Jun 15, 2021
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JCM 9001 of 2 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 rep3 of 3 customers found this review helpful

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Product ExperienceI own it
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 9, 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 7, 2013
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Epic.6 of 7 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: $2699
Store Special Product - Marshall - 4100
Model: 4100
Serial: m-2017-450145-2
Used Available
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Store Special Product - Marshall - 4100

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