Tone library / Metallica / Seek and destroy

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 Ibanez GIO GRG170DX. Studio version, Kill 'Em All (1983) - Main Riff

Original rig

Jose Arredondo-modded 100W Marshall Super Lead (1959), ProCo Rat, Epiphone Flying V with Seymour Duncan Invader pickup

Aggressive early thrash crunch with prominent bite, tight low-end, and boosted upper-mids

Amp settings — Boss Katana 50 MkII

CHANNELBrown amp typeBOOSTon

Knob	Setting (0–10)
Gain	7
Bass	7
Mid	6
Treble	7
Reverb	1
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 (Boss Katana Rat / 'Fat DS' type)

Internal Katana Boost block

Drive 4 · Tone 6 · Level 7

Why these settings

The Boss Katana Brown amp type provides the high-gain modded Marshall foundation of Kill 'Em All, with the onboard boost providing the ProCo Rat push used on the original recording. Unlike later scooped Metallica albums, Seek and Destroy keeps prominent mid punch around 1-2kHz, so mids stay at 6. The Katana 50 MkII lacks a physical presence control on its faceplate, so presence is nulled.

PRO TIPAnchor your picking hand right over the bridge saddles for aggressive, percussive downpicked palm mutes that emulate James Hetfield's signature attack.

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.