Crate GX-15R settings
Before I Forget settings for Crate GX-15R
Slipknot · adapted 2 times on ToneAdapt
To get the Slipknot "Before I Forget" solo tone on a Crate GX-15R, set Gain 7.5, Bass 5, Mid 4, Treble 6.5, Reverb 0, Reverb Control 0. Use the bridge pickup with your guitar's tone on 10 and volume on 10.
Solo settings
Adapted for a ESP MX-220 · updated 2026-06-25
- Pickup
- Bridge pickup
- Guitar knobs
- Tone 10 · Volume 10
Crate GX-15R knobs
- Gain
- 7.5
- Bass
- 5
- Mid
- 4
- Treble
- 6.5
- Reverb
- 0
- Reverb Control
- 0
- Level (Clean Channel)
- 0
- Gain (Overdrive Channel)
- 8
- Level (Overdrive Channel)
- 6
Playing tips
- Use aggressive palm muting for tight chugs.
- Focus on fast alternate picking for clarity in fast riffs.
- Incorporate slides and bends for expressive lead lines.
Riff settings
Adapted for a ESP MX-220 · updated 2026-06-25
- Pickup
- Bridge pickup
- Guitar knobs
- Tone 10 · Volume 10
Crate GX-15R knobs
- Gain
- 9.5
- Bass
- 5
- Mid
- 6
- Treble
- 7
- Reverb
- 0.5
- Reverb Control
- 1
- Level (Clean Channel)
- 0
- Gain (Overdrive Channel)
- 8
- Level (Overdrive Channel)
- 6
Built-in effects
- Reverb on (spring) · 2
Playing tips
- Use your amp's built-in reverb set to a low level to maintain tightness.
- Focus on tight palm muting for chugging riffs to achieve clarity.
- Experiment with picking dynamics to enhance articulation in the riff.
The original rig
What Slipknot used on the recording, for reference. ToneAdapt translates this to the controls your Crate GX-15R actually has.
- Guitar
- Ibanez MTM1 (Mick Thomson signature, mahogany body, fixed bridge, Drop B tuning)
- Amp
- Rivera Knucklehead Reverb 100 (KT88 power tubes, Celestion G12T-75 speakers)
- Gain
- 9.5
- Bass
- 6.5
- Mid
- 6
- Treble
- 7.5
- Presence
- 6.5
- Reverb
- 1
Different guitar or pedals? Get Before I Forget adapted to your exact rig
These settings were generated for the gear named above. ToneAdapt adapts Slipknot's tone to your own guitar, pickups, amp and pedals in seconds.
Frequently asked questions
What are the best Crate GX-15R settings for Before I Forget?
Set Gain 7.5, Bass 5, Mid 4, Treble 6.5, Reverb 0, Reverb Control 0.
Which pickup should I use for Before I Forget?
Bridge pickup, with the guitar's tone at 10 and volume at 10.
What gear did Slipknot use on Before I Forget?
Guitar: Ibanez MTM1 (Mick Thomson signature, mahogany body, fixed bridge, Drop B tuning). Amp: Rivera Knucklehead Reverb 100 (KT88 power tubes, Celestion G12T-75 speakers).
Will these settings work with my guitar?
These settings were adapted for a ESP MX-220. Different pickups change how much gain and treble you need. ToneAdapt adapts the tone to your exact guitar, pickups, amp and pedals.
Before I Forget on other amps
Popular songs on the Crate GX-15R
- Sweet Child O' Mine · Guns N' Roses
- Floods · Pantera
- One · Metallica
- Fade to Black · Metallica
- The Call of Ktulu · Metallica
- To Live Is to Die · Metallica
- Welcome Home (Sanitarium) · Metallica
- ...And Justice for All · Metallica
- Orion · Metallica
- This Love · Pantera
- Wheels of Confusion / The Straightener · Black Sabbath
- Hotel California · Eagles
Settings are generated by ToneAdapt's tone adaptation for the gear named on this page and are a starting point — every amp, guitar and room is a little different.