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Seek and destroy amp settings — Boss Katana 50 MkII

The Metallica guitar tone for “Seek and destroy”, dialed in for a Boss Katana 50 MkII with a Epiphone Les Paul Classic. Studio version, Kill 'Em All (1983) — Main riff and rhythm tone

Original rig

Marshall 1959 Super Lead (Jose Arredondo modded) + ProCo Rat distortion + Electra Flying V with Seymour Duncan Invader humbucker

Aggressive, raw early-thrash bite with tight low-end crunch and prominent upper-mid rasp

Amp settings — Boss Katana 50 MkII

CHANNELBrown amp type (Variation ON)BOOSTon

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

Don’t have a Boss Katana 50 MkII? See this song on other amps → Match your own rig →

Guitar

PICKUPbridge TONE10 VOLUME10

Signal chain

01Onboard Booster (RAT / Guv'nor model)

Engage the onboard Booster knob (set to Rat or Guv'nor in Tone Studio) to recreate the front-end clip into the modded Marshall.

Drive 4 · Tone 6 · Level 7

Why these settings

The Katana 50 MkII lacks a presence knob, so upper-mid rasp is pushed via treble at 7 and the onboard booster. Using the Brown amp type replicates the aggressive, modded British stack voicing of the original 1959 Super Lead. The Les Paul humbuckers match the high-output bite of the original Invader pickup without needing excess amp gain.

PRO TIPAnchor your palm directly against the bridge saddles and use strict downpicking with a heavy (1.0mm+) pick to achieve the tight, percussive chug defining the main riff.

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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