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Seek and destroy amp settings — Leo jaymz AG-04

The Metallica guitar tone for “Seek and destroy”, dialed in for a Leo jaymz AG-04 with a Leo jaymz Gren. Studio version, Kill 'Em All (1983)

Original rig

Gibson Flying V (PAF humbuckers) → Marshall JMP 2203 100W (modified) → Marshall 1960 4x12

Raw, aggressive thrash with present mids, tight palm-mute attack, percussive downstroke bite

Amp settings — Leo jaymz AG-04

Knob	Setting (0–10)
Gain	8
Bass	7
Mid	5
Treble	8
Presence	6
Reverb	0
Master	7

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Guitar

PICKUPbridge TONE10 VOLUME10

Why these settings

Leo Jaymz AG-04 is a solid-state practice amp with simpler voicing than the Marshall JMP 2203. Pushed mids to 5 (vs the scooped 2.5 some sources cite) because the AG-04 lacks the Marshall's natural mid-forward grunt and needs that presence for the riff to cut. Gain at 8 matches the original's saturation level. Treble at 8 preserves the pick attack bite without the AG-04's top-end turning harsh.

PRO TIPStrict downstroke-only picking on the gallop rhythm sections is non-negotiable — alternate picking will lose the percussive, machine-gun tightness that defines this riff. Mute hard with the heel of your palm right at the bridge saddle.

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These settings are for a Leo jaymz AG-04. 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.