Meshuggah reveal surprise amp shakeup during the recording of new album, Immutable

Guitarist Marten Hagstrom of Meshuggah performs at Aftershock Festival at Discovery Park on October 22, 2016 in Sacramento, California.
(Image credit: Miikka Skaffari/FilmMagic)

Meshuggah pioneered the sound of djent long before the onomatopoeic term became a genre, and key to the tone of their early, game-changing brand of guttural extended-range chug was the Mesa/Boogie Dual Rectifier.

Guitarists Mårten Hagström and Fredrik Thordendal have had an on/off love affair with tube heads since they set metal on a new path in the mid-to-late ’90s, turning to everything from the Randall Satan to the Line 6 Vetta, Fractal Axe-Fx and even a signature Fortin over the past two decades.

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Michael Astley-Brown

Mike is Editor-in-Chief of, in addition to being an offset fiend and recovering pedal addict. He has a master's degree in journalism from Cardiff University, and over a decade's experience writing and editing for guitar publications including MusicRadar, Total Guitar and Guitarist, as well as 20 years of recording and live experience in original and function bands. During his career, he has interviewed the likes of John Frusciante, Chris Cornell, Tom Morello, Matt Bellamy, Kirk Hammett, Jerry Cantrell, Joe Satriani, Tom DeLonge, Ed O'Brien, Polyphia, Tosin Abasi, Yvette Young and many more. In his free time, you'll find him making progressive instrumental rock under the nom de plume Maebe.