Schism amp settings — Fender Mustang LT25

The TOOL guitar tone for “Schism”, dialed in for a Fender Mustang LT25 with a Epiphone SG Standard. Studio album cut, Lateralus (2001) - Main heavy verse/chorus riff

Original rig

1979 Gibson Les Paul Custom (Seymour Duncan Distortion bridge) -> Diezel VH4 (Channel 3) blended with Marshall Super Bass and Mesa Dual Rectifier

Articulate, punchy, high-gain prog metal with tight low-end thump and rich midrange bite

Amp settings — Fender Mustang LT25

CHANNELMetal 2000 (Diezel/modern high-gain style voice)BOOSToff

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

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Guitar

PICKUPbridge TONE10 VOLUME10

Why these settings

The Mustang LT25's Metal 2000 model captures the aggressive, saturated preamp crunch of Adam Jones' Diezel VH4 Channel 3. Adam's tone is defined by rich lower-mid grunt rather than a classic scooped metal EQ, so keep the mid control pushed to 7 while backing bass down slightly to keep drop-D palm mutes tight. Presence is null because the LT25 faceplate lacks a physical presence knob.

PRO TIPDig in hard near the bridge with a thick, sharp pick (1.0mm+) on the drop-D power chords to get the percussive attack and harmonic bite characteristic of Adam Jones' aggressive right-hand technique.

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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