Tone library / Metallica / Master of puppets

Master of puppets amp settings — Shark Reverb 25

The Metallica guitar tone for “Master of puppets”, dialed in for a Shark Reverb 25 with a PyleUSA Burning Fire. Studio version, Master of Puppets album (1986)

Original rig

Mesa/Boogie Mark IIC+ head into Marshall 4x12 cabinet, 1984 Gibson Explorer with EMG 81 active humbucker (bridge)

Tight, aggressive thrash rhythm with scooped mids, palm-muted chunk, and cutting high-end bite
Amp settings — Shark Reverb 25
GAIN 8 BASS 5 MID 3 TREBLE 7 REVERB 0 MASTER 6
KnobSetting (0–10)
Gain8
Bass5
Mid3
Treble7
Reverb0
Master6
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Guitar
PICKUPbridge TONE10 VOLUME10
Signal chain

01Metal Zone (MT-2) or similar high-gain distortion

RECOMMENDED — not currently owned. A Boss MT-2, Joyo Metal Zone clone, or any tight high-gain distortion pedal is essential. The Shark Reverb 25 cannot reach thrash saturation on its own. With a distortion pedal, set amp gain to 2-3 and let the pedal drive.

Level 6 · Low 5 · High 7 · Dist 7
Why these settings

The Shark Reverb 25 is an unrecognized budget solid-state amp unlikely to reach Mark IIC+ saturation at any gain setting. I've maxed usable gain at 8 and scooped mids to 3 to approximate the thrash EQ curve, but real results require an external high-gain pedal—then drop amp gain to 2-3 and use the pedal as your dirt source. The PyleUSA Burning Fire's passive humbuckers have lower output than Hetfield's active EMGs, so treble stays high to retain cut.

PRO TIPHetfield's attack is ALL downstrokes with strict palm-muting anchored near the bridge saddles—the muting tightness defines the tone more than any knob. Practice the gallop at half-speed with consistent mute pressure before chasing settings.

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These settings are for a Shark Reverb 25. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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