Gamma G25 settings
One settings for Gamma G25
Metallica · adapted 2 times on ToneAdapt
To get the Metallica "One" riff tone on a Gamma G25, set Gain 8, Bass 5, Mid 3, Treble 7. Use the bridge pickup with your guitar's tone on 10 and volume on 8-9.
Riff settings
Adapted for a Fender Stratocaster · updated 2026-06-29
- Pickup
- Bridge pickup
- Guitar knobs
- Tone 10 · Volume 8-9
Gamma G25 knobs
- Gain
- 8
- Bass
- 5
- Mid
- 3
- Treble
- 7
Built-in effects
- Reverb off
Playing tips
- Focus on tight palm muting for chugging riffs.
- Use fast alternate picking to maintain clarity in the riff.
- Experiment with dynamic picking to emphasize the aggressive attack.
The original rig
What Metallica used on the recording, for reference. ToneAdapt translates this to the controls your Gamma G25 actually has.
- Guitar
- ESP MX-220 (black finish, custom, 1987-1988 era)
- Amp
- Mesa/Boogie Mark IIC+ (main rhythm amp for '...And Justice for All' era)
- Gain
- 8.5
- Bass
- 5.5
- Mid
- 3.5
- Treble
- 7
- Presence
- 4.5
- Reverb
- 1
Different guitar or pedals? Get One adapted to your exact rig
These settings were generated for the gear named above. ToneAdapt adapts Metallica's tone to your own guitar, pickups, amp and pedals in seconds.
Frequently asked questions
What are the best Gamma G25 settings for One?
Set Gain 8, Bass 5, Mid 3, Treble 7.
Which pickup should I use for One?
Bridge pickup, with the guitar's tone at 10 and volume at 8-9.
What gear did Metallica use on One?
Guitar: ESP MX-220 (black finish, custom, 1987-1988 era). Amp: Mesa/Boogie Mark IIC+ (main rhythm amp for '...And Justice for All' era).
Will these settings work with my guitar?
These settings were adapted for a Fender Stratocaster. Different pickups change how much gain and treble you need. ToneAdapt adapts the tone to your exact guitar, pickups, amp and pedals.
One on other amps
Popular songs on the Gamma G25
- Walk · Pantera
- Smells Like Teen Spirit · Nirvana
- Sweet Child O' Mine · Guns N' Roses
- Raining Blood · Slayer
- Hotel California · Eagles
- Holy Wars · Megadeth
- Whole Lotta Love · Led Zeppelin
- Iron Man · Black Sabbath
- Creep · Radiohead
- 1979 · The Smashing Pumpkins
- Highway to Hell · AC/DC
- Welcome to the Jungle · Guns N' Roses
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.