Tone library / Sepultura / Roots bloody roots

Roots bloody roots amp settings — Boss Katana 50 MkII

The Sepultura guitar tone for “Roots bloody roots”, dialed in for a Boss Katana 50 MkII with a Dean Dime razorback. Studio version, Roots (1996), produced by Ross Robinson at Indigo Ranch

Original rig

Gibson SG, Marshall + Vox amps, Tube Screamer-type overdrive, B tuning

Aggressive, tight low-end groove metal with percussive attack and dry, immediate presence

Amp settings — Boss Katana 50 MkII

CHANNELBrownBRIGHToffBOOSToff

Knob	Setting (0–10)
Gain	7
Bass	6
Mid	5
Treble	6
Presence	6
Reverb	0
Master	5

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Guitar

PICKUPbridge TONE8 VOLUME10

Signal chain

01Boss Katana Built-in Booster (TS/OD Mode)

Use the Katana's built-in Booster set to OD-1 or TS mode via Tone Studio; this tightens the low end for down-tuned riffing

Drive 1 · Tone 5 · Level 7

02Boss Katana Built-in Noise Suppressor

Essential for B tuning to control string noise between riffs

Threshold 4

Why these settings

Your Dean Razorback with its high-output humbuckers is ideal for this tone—similar aggression to Max's SG with hotter pickups. The Katana's Brown channel approximates the Marshall crunch from the original. Mid at 5 rather than scooped because the original recording has more midrange presence than typical thrash; the TS-style booster tightens the flubby low end inherent to B tuning.

PRO TIPUse a hard, consistent downpicking attack directly over the bridge pickup—the percussive 'click' of the pick hitting strings is essential to the Roots groove. The riff is essentially a mantra; let the repetition and attack carry the aggression, not extra gain.

Get this tone on your amp

These settings are for a Boss Katana 50 MkII. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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Song, artist and gear names are used to identify the tone being matched; ToneAdapt is not affiliated with or endorsed by the artists or manufacturers mentioned. Settings are AI-generated starting points — trust your ears.