Tone library / Slipknot / Before I Forget

Before I Forget amp settings — Harley Bentom DnafxAmp20

The Slipknot guitar tone for “Before I Forget”, dialed in for a Harley Bentom DnafxAmp20 with a Harley Benton HWY-25BKS. Studio version, Vol. 3: (The Subliminal Verses) (2004) — Jim Root's iconic drop-B riff

Original rig

Bogner-modded Uberschall head into V30 4x12, Fender Telecaster (dual-humbucker) with EMG actives, Maxon OD-820 boost in front

Tight, aggressive modern metal chunk with controlled low-end and cutting mid-presence — the Grammy-winning drop-B chug

Amp settings — Harley Bentom DnafxAmp20

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

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Guitar

PICKUPbridge TONE8 VOLUME10

Signal chain

01Tube Screamer style overdrive (TS9 / TS Mini / Joyo Vintage OD)

RECOMMENDED — not currently owned. Run into amp's dirty channel as a tight boost. The original used a Maxon OD-820 to tighten the Uberschall's low-end and add pick attack. Without this, the tone will be looser and less defined on palm mutes.

Drive 1 · Tone 6 · Level 7

Why these settings

The Harley Benton DnafxAmp20 is an unrecognized small solid-state modeling amp — knob names may differ on your faceplate, and it likely lacks presence/reverb controls (set to null). Your passive humbuckers have lower output than Root's EMGs, so gain stays at 8 to compensate. Mid pushed +1 vs original to cut through on a smaller speaker; bass dropped -1 to prevent flub. A TS-style pedal is essential to reach this tone's tightness.

PRO TIPTune to drop B with heavy strings (11-56 minimum) and palm-mute directly over the bridge saddles — Root's attack is percussive and precise, not loose. Pick hard and let the boosted mids do the heavy lifting rather than chasing more gain.

Get this tone on your amp

These settings are for a Harley Bentom DnafxAmp20. 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.