Tone library / Metallica / Master of Puppets

Master of Puppets amp settings — Denstone GA-15

The Metallica guitar tone for “Master of Puppets”, dialed in for a Denstone GA-15 with a Denstone Stratocaster copy. Studio version, Master of Puppets (1986) — main rhythm riff

Original rig

Jackson Custom Shop King V (Seymour Duncan Invader humbuckers) into Mesa/Boogie Mark IIC+ preamp (V-curve 5-band graphic EQ) slaved into Marshall JCM800 2203 power amp into 4x12 Marshall cab

Aggressive, tight high-gain thrash crunch with deeply scooped 750Hz midrange and razor-sharp bite
Amp settings — Denstone GA-15
CHANNELDrive (Drive switch ON)
GAIN 8 BASS 6 MID 2 TREBLE 7 MASTER 5
KnobSetting (0–10)
Gain8
Bass6
Mid2
Treble7
Master5
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Guitar
PICKUPbridge TONE10 VOLUME10
Signal chain

01ProCo Rat 2 (or modern high-gain distortion)

RECOMMENDED — not currently owned; adds the tight, cascading preamp saturation this practice amp lacks

Distortion 7 · Filter 4 · Volume 6
Why these settings

The Denstone GA-15 is a basic solid-state practice amp, so we engage the Drive switch with Gain at 8 to maximize onboard clipping while keeping Bass at 6 to prevent the small 6.5-inch speaker from farting out. Mids are cut hard to 2 to recreate the iconic Mesa IIC+ graphic EQ 'V-curve' scoop, while Treble is pushed to 7 to compensate for single-coil Strat brightness needing aggressive thrash bite without fizz. Clean interlude: switch the amp Drive button off and select the neck+middle pickup.

PRO TIPAnchor your palm directly against the bridge saddles and execute strict, heavy downpicking with a stiff, heavy pick (1.0mm+) to emulate James Hetfield's signature percussive chug.

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These settings are for a Denstone GA-15. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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