Tone library / Metallica / The Thing That Should Not Be

The Thing That Should Not Be amp settings — Positive Grid Spark 2

The Metallica guitar tone for “The Thing That Should Not Be”, dialed in for a Positive Grid Spark 2 with a ESP LTD KH-202 Kirk Hammett. Live, Seattle 1989 (Live Shit: Binge & Purge) — main heavy rhythm riff

Original rig

Mesa/Boogie Mark IIC+ (slaved into Marshall/Mesa power amps) into Marshall 4x12 cabs, James Hetfield Jackson King V ('Kill Bon Jovi') / Kirk Hammett Jackson Soloist or ESP, tuned down to D Standard (D-G-C-F-A-D)

Crushing, low-tuned thrash crunch with deeply scooped mids, tight percussive low-end, and sharp pick attack
Amp settings — Positive Grid Spark 2
CHANNELTreadplate (Mesa Dual Rectifier model) or Metal (Insane/5150 model) on Spark 2BRIGHToffBOOSToff
GAIN 7 BASS 7 MID 3 TREBLE 7 REVERB 2 MASTER 6
KnobSetting (0–10)
Gain7
Bass7
Mid3
Treble7
Reverb2
Master6
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Guitar
PICKUPbridge TONE10 VOLUME10
Signal chain

01Onboard Noise Gate (Spark G-Gate block)

Essential to clamp low-tuned D-standard chugs tight

Threshold 6 · Decay 3

02Onboard Overdrive (Spark Tube Drive block)

Clean boost in front of the high-gain model to cut mud and tighten the low-end palm mutes

Drive 1 · Tone 7 · Level 8
Why these settings

The Spark 2 is a modeling amp, so we use its onboard high-gain Treadplate amp model paired with the internal Tube Drive block functioning as a tight mid-boost. Tune your ESP LTD down a full step to D Standard (D-G-C-F-A-D) to match the record's low register and mechanical tension. The ESP LH-301 pickups are high-output passive humbuckers, so keep the virtual Tube Drive gain down at 1 while scooping mids to 3 to reproduce the classic Mesa V-curve graphic EQ. Clean verse: tap the Spark preset switch to a Roland JC-style clean model with light chorus.

PRO TIPHeavy, downward-only wrist-driven palm mutes right near the bridge saddles are mandatory—keep your picking hand firmly locked to tighten the sluggish response of dropped tuning.

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These settings are for a Positive Grid Spark 2. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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