Duality amp settings — Fender Mustang LT25

The Slipknot guitar tone for “Duality”, dialed in for a Fender Mustang LT25 with a ESP LTD EC-256. Studio version, Vol. 3: (The Subliminal Verses) (2004) — iconic main Drop B heavy rhythm riff

Original rig

Rivera Knucklehead KR-7 / KR100, Orange Rockerverb prototypes, EMG 81 bridge humbuckers, tuned to Drop B (B-F#-B-E-G#-C#)

Thick, punchy Drop-B high-gain modern metal rhythm with aggressive upper-mid cut and tight low-end chug

Amp settings — Fender Mustang LT25

CHANNELMetal 2000 amp model

Knob	Setting (0–10)
Gain	8
Bass	6
Treble	7
Reverb	0
Master	5

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Guitar

PICKUPbridge TONE10 VOLUME10

Signal chain

01Onboard Overdrive / Screamer Block (Mustang LT25)

Used as a clean front-end boost to tighten the Drop-B low end

Drive 0 · Tone 7 · Level 8

02Onboard Noise Gate Block (Mustang LT25)

Essential for stopping high-gain hiss between staccato palm mutes

Threshold 7

Why these settings

The Fender Mustang LT25 features the high-gain 'Metal 2000' model (based on an EVH/5150 style high-gain channel), perfectly suited to capture the aggressive Rivera and Orange saturation without external pedals. Because the LT25 physical panel features only Bass and Treble controls (no dedicated Mid or Presence knobs), Bass is set to 6 to prevent the 8-inch practice speaker from flubbing out under Drop-B tuning, while Treble is pushed to 7 for sharp upper-mid bite. Engaging the onboard Screamer stomp block with Drive at 0 and Level pushed tightens the sub-lows just like Jim Root's front-end boost rig.

PRO TIPUse heavy-gauge strings (at least 11-56 or 12-60) to maintain string tension in Drop B tuning, and hit your downstrokes directly over the bridge pickup with a sharp, heavy pick (1.5mm+) to get the immediate, percussive attack of the opening riff.

Get this tone on your amp

These settings are for a Fender Mustang LT25. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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