Marshall JCM900 4100 – 100W Dual Reverb Valve Head in stock

£1,199.00

The Marshall JCM900 4100 – 100W Dual Reverb Valve Head is now in stock . You will find it with fast UK delivery online for £1199 with P+P. This excellent piece of kit is manufactured by Marshall This product comes with a great warranty. The JCM900 4100 was the next evolutionary step on from the…

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Description

The Marshall JCM900 4100 – 100W Dual Reverb Valve Head is now in stock . You will find it with fast UK delivery online for £1199 with P+P. This excellent piece of kit is manufactured by Marshall This product comes with a great warranty.

The JCM900 4100 was the next evolutionary step on from the JCM800™ Series. This is a precise re-issue of the JCM900 4100, 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.

Specifications

  • MODEL JCM900 4100
  • RANGE VINTAGE
  • TECHNOLOGY VALVE
  • CHANNELS 2

ELECTRONICS

  • WATTAGE 100W
  • INPUTS 1
  • CONTROLS PRESENCE, BASS, MIDDLE, TREBLE, PREAMP x 2, MASTER x 2, REV x 2

VALVES

  • PRE AMP VALVES 2 x ECC83
  • POWER AMP VALVES 1 x ECC83, 4 x 5881

ACCESSORIES

  • FOOTSWITCH PEDL-91004 INCLUDED (2 WAY FOOTCONTROLLER)
  • CABLES POWER/SPEAKER

DIMENSIONS

  • WEIGHT (KG) 18.8
  • DIMENSIONS in mm
  • (W x H x D) 740 x 310 x 210
  • EFFECTS LOOP 
  • MASTER VOLUME 
  • PENTODE/TRIODE SWITCH

 

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100W

Dual

Guitar Amps and Cabs

Guitar amps and cabs are just as crucial to a guitarist’s tone as the guitar itself. Amplifiers shape the sound—whether it’s clean and warm, crunchy and bluesy, or full-on distortion for rock and metal. They come in two main types: combo amps, which include both the amp and speaker in one unit, and amp heads, which are paired with separate cabinets (cabs) to project the sound.

Cabs come in various sizes, like 1×12, 2×12, or the mighty 4×12, each delivering different tone and feel. Speakers, cabinet wood, and even open vs closed backs all influence the sound. Matching the right amp and cab gives players control over their dynamics, tone, and presence—whether you’re playing in your bedroom, a studio, or on a festival stage.

Head

Reverb

Reverb, short for reverberation, is an essential guitar effect that simulates the natural reflections of sound in a physical space, such as a room, hall, or cathedral. It adds depth, ambiance, and spaciousness to the guitar’s sound by creating a series of discrete echoes that decay over time, mimicking the way sound reverberates in different environments. Reverb pedals offer controls for adjusting parameters such as decay time (the length of the reverb tail), pre-delay (the time between the original signal and the onset of the reverb), and mix (the balance between the dry and reverberated signals). By adjusting these parameters, guitarists can achieve a wide range of reverb effects, from subtle room ambience to lush, expansive reverberation. Reverb is widely used across various music genres, including rock, jazz, ambient, and electronic music, to add depth, dimension, and realism to guitar tones, creating a sense of space and immersion in the sound. Popular reverb pedal models include the Strymon BigSky, Boss RV-6, and Electro-Harmonix Holy Grail.

valve

Valve, also known as tube, refers to a type of amplifier technology that uses vacuum tubes to amplify the guitar signal. Valve amps are renowned for their warm, rich tone, natural compression, and smooth distortion when driven hard. Many players prefer valve amps because of their dynamic response and organic sound character. Although they require more maintenance and can be heavier than solid-state amps, valve amplifiers remain a favourite choice for professional musicians seeking classic tones and expressive performance.

About Marshall

We have new and used Marshall musical equipment available on our website for fast direct delivery from sellers across the UK & Europe.

Marshall Amplification is a British company famous for its iconic guitar amplifiers and effects pedals. Founded in 1962 by Jim Marshall in London, the brand quickly became a favourite among legendary guitarists for its powerful, distinctive sound. Marshall amps helped define the classic rock tone and remain popular across many genres today. The company offers a wide range of amplifier models, from vintage-inspired designs to modern versatile units, maintaining a strong reputation for quality and innovation in the music industry.