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Average Price: $1,600

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$300

$801+

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Description

The Marshall JCM900 MKIII 2500 is a powerhouse of a guitar amplifier head, perfect for those who demand both versatility and raw power. As a staple in the world of rock and metal, this amp head brings a classic Marshall tone to life with modern enhancements. The JCM900 MKIII 2500 is designed with dual channels, allowing for seamless transitions between clean and overdriven tones. Whether you're crafting bluesy riffs or heavy metal anthems, this amp head delivers with precision and clarity.

The MKIII series is renowned for its distinctive midrange punch and articulate high-end response. With its robust build, it can withstand the rigors of touring and extensive gigging. The amp head is equipped with a comprehensive EQ section, giving you full control over your sound. The inclusion of an effects loop ensures you can integrate your favorite pedals effortlessly.

Key Features:

  • Dual-channel design for versatile tone switching
  • Classic Marshall circuitry with modern upgrades
  • Comprehensive EQ for precise tone shaping
  • High and low power settings for different performance needs
  • Integrated effects loop for seamless pedal integration
  • Renowned for its midrange punch and clear high-end response

Product specs

Brand Marshall
Model JCM 900 Model 2500 50-Watt Hi Gain Master Volume MkIII Head
Finish Black
Year 1990s
Made In United Kingdom
Categories Guitar Heads
Color Family Black
Electronics Tube
Impedance 16 ohms, 4 ohms, 8 ohms
Number of Channels 1 Channel
Number of Inputs 1 Input
Output Power (Watts) 50
Power Tube Type EL34
Reverb None

FAQs

What is the power output of the Marshall JCM900 MKIII 2500?

The Marshall JCM900 MKIII 2500 is a 50-watt guitar amplifier head, providing ample power for both practice and live performances.

What type of power tubes does the Marshall JCM900 MKIII 2500 use?

This amplifier uses EL34 power tubes, which are known for their warm, classic British rock sound.

How many channels does the Marshall JCM900 MKIII 2500 have?

The Marshall JCM900 MKIII 2500 features a single channel, designed for simplicity and delivering its renowned high-gain sound.

Is the Marshall JCM900 MKIII 2500 suitable for high-gain music genres?

Yes, the Marshall JCM900 MKIII 2500 is designed to deliver the high-gain tones that are ideal for rock and metal music.

What impedance options are available on the Marshall JCM900 MKIII 2500?

The Marshall JCM900 MKIII 2500 offers impedance options of 16 ohms, 8 ohms, and 4 ohms, providing flexibility for different speaker cabinets.

Johan Segeborn

Johan Segeborn

3 Versions of Marshall JCM900 Shootout - MkIII Vs SL-X Vs Dual Reverb

Video thumbnail for 3 Versions of Marshall JCM900 Shootout - MkIII Vs SL-X Vs Dual Reverb by Johan Segeborn

3 Versions of Marshall JCM900 Shootout - MkIII Vs SL-X Vs Dual Reverb

Johan Segeborn

Johan Segeborn

Video thumbnail for The Forgotten Marshall - JCM900 MkIII Demo by Leon Todd

The Forgotten Marshall - JCM900 MkIII Demo

Leon Todd

Leon Todd

Video thumbnail for Marshall JCM900 Mk III and SLX - In-Depth Review by Totally Rad Guitars

Marshall JCM900 Mk III and SLX - In-Depth Review

Totally Rad Guitars

Totally Rad Guitars

Video thumbnail for Marshall JCM900 MKIII 2500 Metal Clip by Lasse Lammert

Marshall JCM900 MKIII 2500 Metal Clip

Lasse Lammert

Lasse Lammert

Video thumbnail for The Forgotten Marshall? |  JCM900 MKIII by Leon Todd

The Forgotten Marshall? | JCM900 MKIII

Leon Todd

Leon Todd

Video thumbnail for Marshall JCM900 MKIII 2100 by ReampZone (Kemper profiles demo) - Rig Showcase by Have Guitar

Marshall JCM900 MKIII 2100 by ReampZone (Kemper profiles demo) - Rig Showcase

Have Guitar

Have Guitar

Video thumbnail for Marshall JCM900 MKIII Demo (MSP Guitars) by GEAR HAVEN & GH SYSTEMS

Marshall JCM900 MKIII Demo (MSP Guitars)

GEAR HAVEN & GH SYSTEMS

GEAR HAVEN & GH SYSTEMS

Reviews

PROS

  • Extra tube and knob for increased tonal control

  • Handles overdrive pedals exceptionally well

  • Features an effects loop for added versatility

  • Power switch to reduce output to 25 watts

  • Closely resembles the iconic JCM 800 sound

  • Considered the best amp in the 900 series

  • Supports integration of external preamps

  • Offers potential for sound enhancements through mods

CONS

  • Channel switching is somewhat unconventional

  • Requires professional skill for internal modifications

  • Printed circuit board can be delicate for inexperienced users

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Marshall JCM900 MKIII 2500.

Features and functionality

  • The 'Gain Sensitivity' knob adjusts signal through a diode bridge, acting like a built-in distortion pedal, essential for low-volume tone enhancement.

    Source

Use cases and applications

  • To achieve optimal tone, the master volume should be set above 6, but using half power mode can help manage volume in smaller venues.

    Source
  • Some users recommend using a plexi screen to manage sound levels in live settings, maintaining the amp's feel without overpowering the audience.

    Source
  • Jumping the effects loop with a patch cable is rumored to add additional "oomph," enhancing the amp's tonal depth.

    Source
  • The JCM900 MKIII is frequently used for classic rock and early death metal, with its sound being particularly favored in band settings for its raw power.

    Source
  • It's noted that the amp's high volume is better suited for gigging rather than home use, and it excels when pushed to higher settings.

    Source

Mods and upgrades

  • An attenuator might be necessary for better volume control, though it's noted that passive attenuators may degrade tone quality.

    Source
  • Kruse mods are highly regarded for enhancing the JCM900's high-gain capabilities, though specific mod details remain undisclosed by some owners.

    Source

User experience

  • Owners report that the JCM900 MKIII 2500's tone is best appreciated with a 2x12 cabinet for medium-sized venues, as 4x12 can be overwhelming.

    Source
  • Some owners discover a preference for EL34 tubes with the MKIII, noting its desirable tone even without modifications.

    Source

Comparisons

  • The 25xx series, unlike Dual Reverb models, features an all-tube design with minimal solid-state circuitry, contributing to its superior reputation.

    Source
  • Users compare the JCM900 MKIII's growling tone to the intro of "Last Cup of Sorrow" by Faith No More, highlighting its suitability for aggressive rock styles.

    Source
  • Despite acquiring multiple Marshall amps, some find the JCM900 MKIII unique, though it doesn't overshadow the popular 5150 amp in terms of personal preference.

    Source
  • The JCM900 MKIII, unlike the Dual Reverb models, has a more tube-like tone and is praised for its suitability in metal genres, especially in comparison to the SL-X.

    Source
  • Many users find the MKIII preferable over the Dual Reverb due to its superior low-volume performance and more traditional tube sound.

    Source

Value and pricing

  • The market demand for JCM900 MKIII amps is high, with some users actively seeking duplicates due to its desirable sound profile.

    Source

4.5 out of 5

Based on 1 Review and 2 Ratings

5 star
4 star
3 star
2 star
1 star
graham_goff

Hot Rod JCM 800 2203

Agree or dont, this is the best sounding JCM900. Produced from 90-92.

Artist usage

Add artist
See how Pappo uses Marshall JCM900 MKIII 2500

Pappo

Singer, Guitarist

Pappo's Blues

...
Verified via Photo

Pappo used the Marshall JCM900 Mk III guitar amplifier head, as shown in a user-uploaded photo.

See how Onielar uses Marshall JCM900 MKIII 2500

Onielar

Singer, Guitarist

Bethlehem

...
Verified via Photo

In this photo, you can see a Marshall amp head, which upon closer inspection, appears to be a JCM900 Mk III, used by Onielar.

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Used With

Based on how musicians on Equipboard use Marshall JCM900 MKIII 2500, it is most commonly used with the following gear.

Marshall 1960B 4x12'' Cabinet
Marshall 1960B 4x12'' Cabinet Guitar Amplifier Cabinets
1

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