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Average Price: $2,376

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$300

$801+

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Description

Unleash the power of rock history with the Marshall JMP Superlead 100 Watt guitar amplifier head. This legendary amp has been the backbone of countless iconic performances, offering a raw, unadulterated tone that has shaped the very essence of rock 'n' roll. All-tube circuitry ensures that each note you play is steeped in the warmth and richness that only a classic tube amp can deliver.

From the clean, crisp chords to the gritty, crunchy leads, the Superlead's versatile sound range caters to every guitarist's needs. Its iconic Plexi tone is faithfully reproduced in this reissue, delivering the same punchy, dynamic sound that graced the stages of Woodstock and beyond. The JMP Superlead is not just an amp; it's a piece of rock history in your hands.

This amp head features a tonally transparent effects loop, ensuring that your effects blend seamlessly with the amp's natural tone. And for purists, the true bypass switch allows you to remove the effects loop from the circuit entirely, preserving the authentic sound. Whether you're in the studio or on stage, the Marshall JMP Superlead 100 Watt is your ticket to classic rock sound.

Key Features:

  • 100-watt all-tube design
  • Iconic Plexi tone
  • EL34 and 12AX7 tubes
  • Tonally transparent effects loop with true bypass switch
  • Faithful reissue of the original '60s model

Product specs

Brand Marshall
Model JMP 1959 Super Lead 2-Channel 100-Watt Guitar Amp Head
Finish Black, Red, White
Year 1967 - 1975
Made In United Kingdom
Categories Guitar Heads
Color Family Black
Direct Output No Direct Output
Electronics Tube
Impedance 16 ohms, 4 ohms, 8 ohms
Number of Channels 2 Channels
Number of Inputs 4 Inputs
Output Power (Watts) 100
Power Tube Type EL34
Reverb None

FAQs

What kind of music genres is the Marshall JMP Superlead 100 Watt best suited for?

The Marshall JMP Superlead 100 Watt is renowned for its powerful, classic rock tones, making it ideal for genres like rock, hard rock, and early metal. Its dynamic response and rich harmonic content also make it suitable for blues and other genres requiring a strong, vintage tube-driven sound.

Does the Marshall JMP Superlead 100 Watt work well with pedals?

Yes, the Marshall JMP Superlead 100 Watt is known for taking pedals well, particularly overdrives and distortions, which can enhance its already powerful tonal characteristics. Its clean headroom allows for effective use of modulation and time-based effects as well.

What is the difference between the Marshall JMP Superlead and other Marshall amps?

The Marshall JMP Superlead is distinct for its 100-watt power and classic British tone, providing a louder, more aggressive sound compared to lower wattage models. It's a part of the iconic Plexi series, known for its raw, uncompressed sound that is highly sought after by rock guitarists.

How many inputs does the Marshall JMP Superlead 100 Watt have?

The Marshall JMP Superlead 100 Watt features four inputs, allowing for versatile patching options and the ability to blend different channels for a variety of tones.

Is the Marshall JMP Superlead 100 Watt suitable for gigging in large venues?

Yes, with its 100-watt output, the Marshall JMP Superlead is more than capable of delivering powerful sound in large venues, making it a staple for gigging musicians who perform in big spaces or outdoor settings.

shnobel

shnobel

1974 Marshall JMP 100w Super Lead For Sale

Video thumbnail for 1974 Marshall JMP 100w Super Lead For Sale by shnobel

1974 Marshall JMP 100w Super Lead For Sale

shnobel

shnobel

Video thumbnail for Marshall 1972 JMP 100w Super Lead #1959 (1 of 2) by James Robinson-Wyatt

Marshall 1972 JMP 100w Super Lead #1959 (1 of 2)

James Robinson-Wyatt

James Robinson-Wyatt

Video thumbnail for 1971 Marshall JMP Superlead 1959 100 watt with and without V2 mod October 6 2021 by Eric Simkin

1971 Marshall JMP Superlead 1959 100 watt with and without V2 mod October 6 2021

Eric Simkin

Eric Simkin

Reviews

PROS

  • Distinctive sound with unmatched gain and overdrive quality

  • Non-Master Volume amps offer unique playing feel

  • Classic 60s Marshall sound achievable with proper settings

  • Authentic vintage tone that modern amps struggle to replicate

  • Highly valued by experienced musicians and collectors

  • Versatile with potential for de-modding to restore original sound

  • Considered a worthwhile investment for serious tone seekers

CONS

  • Extremely loud, may not be suitable for all environments

  • Heavy and cumbersome to transport

  • Potential for confusion over different years and circuit designs

  • Risk of modded units affecting original sound quality

  • Higher price points for certain vintage years may not match all budgets

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Marshall JMP Superlead 100 Watt.

Setup and maintenance

  • Inspecting the QC checklist or production date inside the chassis can help verify the manufacturing year and authenticity.

    Source
  • Some users have adapted the amp to 50 watts by removing two power tubes, making it more manageable for smaller venues.

    Source

Mods and upgrades

  • Swapping 6550 power tubes to EL34s is recommended by owners to capture the classic Marshall tone reminiscent of Hendrix and Zeppelin.

    Source
  • Recommended mods for a SL to SB conversion include switching V1A cathode cap/resistor values and changing tonestack and PI coupling caps for tonal variation.

    Source

Features and functionality

  • Marshalls from the 1972-75 era may feature a QC checklist with initials and a date, useful for pinpointing production details.

    Source
  • A 1973 JMP Super Lead is distinguished by its aluminum front control panel, unlike earlier plexiglass models, indicating its post-1969 production.

    Source
  • The "Super Bass" with higher headroom is favored for styles requiring less breakup, emulating the thickness of JTM45 tweed clones, ideal for Malcolm Young's tones.

    Source
  • The 1970 model includes Dagnall transformers similar to those from 1969 Plexi amps, contributing to its vintage sound.

    Source

User experience

  • The Fryette Power Station 100 is praised for making the loud, classic tone of the JMP Superlead more usable in modern settings with its attenuation and effects loop capabilities.

    Source
  • Owners report that E34L power tubes, often confused with EL34s, alter the high-end tone significantly, impacting the amp's overall sound profile.

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  • Owners report that the amp only starts to sound optimal at volume level 6, which is extremely loud, necessitating the use of attenuators for home use.

    Source

Build quality

  • Pre-1976 models are identified by their toggle switches, as opposed to the rocker switches introduced later, indicating a potential build date before this transition.

    Source

Other

  • The use of laydown power transformers in some 1975 models is noted as a rare feature, offering insights into specific production characteristics.

    Source

Comparisons

  • The "Super Bass" amp is said to have a shared cathode on the first gain stage, offering a slightly fuller, darker sound compared to the "Super Lead."

    Source

Use cases and applications

  • It's recommended to pair the amp with pedals like the original TS9 Tube Screamer, wah, or fuzz for enhanced tonal experience.

    Source
  • The amp's high volume output makes it suitable for studio practice rooms or club gigs when paired with an attenuator.

    Source

4.5 out of 5

Based on 0 Reviews and 3 Ratings

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Artist usage

Add artist
See how Wes Dearth (John Wesley) uses Marshall JMP Superlead 100 Watt

Wes Dearth (John Wesley)

Guitarist

Porcupine Tree

...
Verified via Guitar Messenger

In the Interview John says on the use of a 1978 Marshall JMP 100 on the Porcupine Tree records / live Gigs: "So I bought a modded 1978 JMP 100. It’s modded to hell and back – a guy named Mark Cameron modded it. That head is actually responsible for the last couple of records – The Incident and his solo record, and then one of my other Marshalls did most of the work on the record before that."

See how Rick Froberg uses Marshall JMP Superlead 100 Watt

Rick Froberg

Singer, Guitarist

Drive Like Jehu

...
Verified via reverb.com

[John] Reis tells us that, for Jericho Sirens, [Rick Froberg] used a 100-watt Marshall JMP, through a 4x12 cabinet with Celestion Greenbacks.

See how Dallas Thomas uses Marshall JMP Superlead 100 Watt

Dallas Thomas

Guitarist

Pelican

...
Verified via Photo

"Dallas’ go-to amp right now actually belonged to fellow Rig Rundown alum, Peter Frampton. This Marshall is a handwired 2006 Marshall JMP Super Lead reissue. It pumps through a Marshall 4x12 loaded with Celestion 30s."

Source: https://www.premierguitar.com/articles/27745-rig-rundown-pelican

See how Joseph D'Agostino uses Marshall JMP Superlead 100 Watt

Joseph D'Agostino

Guitarist

Cymbals Eat Guitars

...
Verified via reverb.com

"I've been using a Canadian JMP for four years now on the road." The amp is also pictured in this article.

J

James Stevenson

Guitarist

Fischer-Z

...
Verified via Photo

On Instagram, James Stevenson showcases his use of the Marshall JMP Superlead 100 Watt guitar amplifier head, highlighting it as part of his extensive gear collection.

See how Jonah Buffa uses Marshall JMP Superlead 100 Watt

Jonah Buffa

Guitarist

Portraits of Past

...
Verified via Photo

In the provided image, Jonah Buffa is shown using a Marshall JMP Superlead 100 Watt from 1959.

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 JMP Superlead 100 Watt, it is most commonly used with the following gear.

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Community setups

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stephsheehy

stephsheehy

Gear IQ 265

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