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Johnson Amplification Marquis JM120 main image

Johnson Amplification Marquis JM120

Johnson Amplification Marquis JM120

1 Critic Review

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This product is Vintage or Discontinued

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Page last updated Aug 11, 2025

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Description

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Discover the Johnson Amplification Marquis JM120, a combo guitar amplifier that harmonizes power and versatility for the modern guitarist. This amp is engineered to deliver a dynamic and robust sound, making it an excellent choice for both practice sessions and live performances. Featuring a solid-state design, the JM120 provides consistent, reliable tone without the hassle of tube maintenance. With its innovative digital effects processor, this amp offers a wide range of tonal possibilities, allowing musicians to explore everything from shimmering cleans to gritty overdrive with ease.

The JM120 is equipped with dual channels, each with its independent EQ controls, giving you the flexibility to shape your sound precisely the way you want. Its sturdy construction ensures durability, while the intuitive layout makes it user-friendly for musicians of all levels. Whether you're jamming in your bedroom or performing on stage, the Johnson Amplification Marquis JM120 is built to accommodate your musical journey.

Key Features:

Solid-state design for consistent performance
Dual channels with independent EQ controls
Integrated digital effects processor
Rugged construction for durability
Ideal for both practice and live performance settings

Videos

Groovy Music Lessons

Groovy Music Lessons

Johnson Marquis JM120 & JM60 Amp Reviews By Scott Grove

Video thumbnail for Johnson Marquis JM120 & JM60 Amp Reviews By Scott Grove by Groovy Music Lessons

Johnson Marquis JM120 & JM60 Amp Reviews By Scott Grove

Groovy Music Lessons

Groovy Music Lessons

Reviews

Critic Reviews

Trash or Treasure: Johnson Marquis JM120 Stereo - Premier Guitar

premierguitar.com

The Johnson Amplification Marquis JM120 Stereo is a curious relic from the modeling amp era, boasting impressive tube-driven tones but burdened by significant drawbacks. Weighing a hefty amount, it's not the most portable choice, and the lack of a footswitch limits its usability during performances. While it offers a diverse range of amp models and effects, its weight and the rapid evolution of modeling technology make it feel outdated. Once a pioneer, it now struggles to hold value and relevance in a market flooded with lighter, more versatile options. If you're passionate about vintage gear and can overlook its flaws, it could be a nostalgic addition, but practicality is lacking.

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Genre Usage

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

Alternative Rock

Progressive Rock

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See also: Combo Guitar Amplifiers, Johnson Amplification, Johnson Amplification Combo Guitar Amplifiers

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