The Never-Ending Pursuit of Pure, Timeless Tone
Roland Jazz Chorus: 50 Years and Beyond
The Jazz Chorus series was born in 1975, and the distinctive “JC Clean” tone and onboard chorus effect have been revered by musicians across multiple generations. These timeless amplifiers have commanded a unique foothold in the music world for over five decades, delivering a pure, versatile voice that’s inspired everyone from home players and local performers to the biggest names of all time.
The Roland amplifier engineering team remains dedicated to forwarding the JC legacy, carrying on its immortal character through innovative solutions that drive the creative ambitions of musicians everywhere.
*This picture includes prototype models.
The Clean Benchmark Since 1975
1970s
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JC-120
The flagship Jazz Chorus changed music history by introducing the JC Clean sound and signature Dimensional Space Chorus to the world. Equipped with 120 watts of stereo power and two 12-inch speakers, this classic has never left the Roland lineup.
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JC-60
Released alongside the JC-120, this compact variation featured 60 watts of power and a single 12-inch speaker.
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Jeff “Skunk” Baxter
(Steely Dan, The Doobie Brothers, and Others)
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JC-160
A 120-watt amp popular for its wide-ranging sound with four 10-inch speakers.
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JC-80
Loaded with a large-diameter 15-inch speaker and 60 watts of power.
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Andy Summers
(The Police and Others)
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JC-200 and JC-200S
This stack-style configuration delivered 200 watts—the largest power output in JC series history—into matching cabinets with two 12-inch speakers.
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Steve Levine
(Producer: Culture Club, The Clash, The Beach Boys, and More)
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JC-50
Powerful yet compact 50-watt amp with a 12-inch speaker.
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Adrian Belew
(King Crimson, Frank Zappa, and Others)
1980s
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JC-120H
An amplifier head with 120 watts of power and a variable high-treble control instead of a bright switch.
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Billy Duffy
(The Cult)
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JC-77
Mid-class JC combo with 80 watts and two 10-inch speakers.
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JC-55
A more portable JC design with 50 watts and two 8-inch speakers.
1990s
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JC-20
Genuine JC tone in a miniature 20-watt amp with two 5-inch speakers.
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Johnny Marr
(The Smiths, Modest Mouse, and Others)
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Gil Norton
(Producer: Foo Fighters, Pixies, Echo & The Bunnymen, and More)
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JC-85
A powerful stage performance amp with 80 watts and two 10-inch speakers.
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JC-90
An upgraded version of the JC-85 featuring two 10-inch Eminence speakers.
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Freddie Cowan
(The Vaccines)
2010s
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Jeremy Freedman
(The Neighbourhood)
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JC-40
Equipped with 40 watts of power and two 10-inch speakers, this model is the first JC amp with a stereo input.
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JC-22
Legendary stereo JC guitar tones in a compact 30-watt home amp with two 6.5-inch speakers.
Technical Story
Sound Revolution
From its inception, the JC-120 was aimed at a totally different sound than the warm distortion produced by standard tube amp designs. At first, the pure JC Clean sound was foreign to some players used to traditional tube saturation. But gradually, the amp’s unique transparency and pristine character became highly sought after by musicians and producers, who wove its magic into some of the most influential recordings of the modern era.
Thanks to its incomparable tone and professional durability, the Jazz Chorus series has been a consistent presence in music’s evolution since its debut. Over fifty years on, the JC Clean sound remains a vital presence in popular music, from the recording studio to the live stage.
Specialized Design for Clear, Pure Sound
The distinctive JC voice is a wide-ranging sound that’s punchy, full, and clear, achieved through a specialized design with dual power amps feeding two independent speakers. The dedicated amps drive each speaker with maximum efficiency, delivering clarity without harshness, rich dynamic response, and voluminous headroom. This fat, uncolored sound is ideal for tone-shaping with pedal effects, providing a neutral platform that reveals their full potential.
Dimensional Space Chorus
While commonplace today, the chorus effect was a signature Roland innovation that debuted with the JC-120 in 1975. Leveraging the dual-output approach, the JC’s Dimensional Space Chorus works by feeding a dry sound to one speaker and the same signal with pitch modulation applied to the other. These discrete tones naturally mix in the immediate listening space, creating a beautifully immersive stereo sound field with dimension, depth, and movement.
In 1976, the effect was introduced in pedal form with the BOSS CE-1 Chorus Ensemble, allowing musicians to achieve similar sounds with two independent amplifiers. The chorus effect’s alluring appeal spurred further innovation and circuitry refinements, leading to the development of classic compacts like the CE-2 and a continuous line of BOSS chorus pedals since.