Tone library / Metallica / Master of Puppets

Master of Puppets amp settings — Valeton GP-100

The Metallica guitar tone for “Master of Puppets”, dialed in for a Valeton GP-100 with a Squier Affinity Stratocaster. Studio version, Master of Puppets (1986) — main rhythm riff

Original rig

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

Aggressive, tight high-gain thrash crunch with deeply scooped 750Hz midrange and razor-sharp bite

Amp settings — Valeton GP-100

CHANNELMesa Mark-style high-gain amp model (e.g. CALI IIC+ or US LEAD) + 4x12 V30/T75 Cab IRBRIGHToffBOOSToff

Knob	Setting (0–10)
Gain	7
Bass	8
Mid	2
Treble	7
Presence	6
Reverb	0
Master	7

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Guitar

PICKUPbridge TONE10 VOLUME10

Signal chain

01Valeton Noise Gate Block (NR)

Essential for stopping buzz during the fast staccato downpicked chugs

Threshold 6 · Decay 3

02Valeton EQ Block (5-Band / Graphic EQ)

Placed post-amp block to recreate the classic Mesa Boogie Mark IIC+ graphic EQ V-curve scoop

80Hz / Bass 7 · 240Hz / Low-Mid 5 · 750Hz / Mid 2 · 2.2kHz / High-Mid 7 · 6.6kHz / Treble 6

Why these settings

To compensate for the lower-output, brighter single coils on the Squier Stratocaster, bass is pushed to 8 and amp gain is set to 7 to deliver the necessary low-end chunk without high-end ice-pick. The signature Mark IIC+ V-curve is dialed via the post-amp Graphic EQ block with a deep cut at the midrange to emulate the studio record. For the clean interlude, switch to the neck pickup and bypass the amp's high-gain block in favor of a clean JC-120 style model with light chorus.

PRO TIPAnchor the heel of your picking hand heavily across the bridge saddles and execute every single rhythm note with strict, aggressive downpicking to achieve James Hetfield's signature percussive attack.

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