Tone library / Metallica / Master of Puppets

Master of Puppets amp settings — Yerasov Repetitor R1

The Metallica guitar tone for “Master of Puppets”, dialed in for a Yerasov Repetitor R1 with a Fender American Ultra Stratocaster. Studio version, Master of Puppets (1986) - Main iconic rhythm track

Original rig

Mesa/Boogie Mark IIC+ (preamp with V-curve 5-band graphic EQ) slaved into Marshall JCM800 2203 power amp + Marshall 4x12 cab, Jackson King V / Gibson Explorer with high-output humbuckers

Aggressive, tight, high-gain thrash rhythm with deeply scooped mids and punchy low-end

Amp settings — Yerasov Repetitor R1

CHANNELClean channelBRIGHToffBOOSToff

Knob	Setting (0–10)
Gain	2
Bass	6
Mid	5
Treble	5
Reverb	0
Master	5

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Guitar

PICKUPbridge TONE10 VOLUME10

Signal chain

01Behringer UM300 Ultra Metal

Main gain source (run direct into clean amp input)

Dist 8 · Level 7 · High 7 · Low 8 · Mid 2 · Mid Freq 5

Why these settings

The Behringer UM300 acts as the dedicated high-gain preamp to replicate the Mark IIC+ tone, so the Yerasov Repetitor R1 is set to its clean channel with gain low to avoid muddy double-distortion. The UM300's semi-parametric EQ is dialed to scoop the 800Hz-1kHz region while boosting low and high frequencies, recreating the classic Mesa 5-band V-curve. Treble is pushed slightly to compensate for the single-coil bridge pickup on the Strat compared to Hetfield's humbuckers.

PRO TIPAnchor your palm firmly against the bridge saddles and execute strict, aggressive downpicking with a heavy, sharp pick (1.0mm+) right above the bridge pickup to nail the track's percussive attack.

Get this tone on your amp

These settings are for a Yerasov Repetitor R1. 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.