Marshall G15RCD settings
Holy Wars settings for Marshall G15RCD
Megadeth · adapted 2 times on ToneAdapt
To get the Megadeth "Holy Wars" riff tone on a Marshall G15RCD, set Gain 6.5, Bass 5, Treble 7, Reverb 0, Contour 6. Use the bridge pickup with your guitar's tone on 10 and volume on 10.
Riff settings
Adapted for a Ibanez GIO GRX40 · updated 2026-08-29
- Pickup
- Bridge pickup
- Guitar knobs
- Tone 10 · Volume 10
Marshall G15RCD knobs
- Gain
- 6.5
- Bass
- 5
- Treble
- 7
- Reverb
- 0
- Contour
- 6
Playing tips
- Use tight palm muting to achieve a percussive attack.
- Focus on crisp pick attack for clarity in fast riffs.
- Maintain a staccato feel to emphasize the rhythmic elements.
The original rig
What Megadeth used on the recording, for reference. ToneAdapt translates this to the controls your Marshall G15RCD actually has.
- Guitar
- Jackson KV Pro Dave Mustaine Signature (likely with Bill Lawrence L-500XL bridge pickup)
- Amp
- Marshall JCM800 2203 head into DeCuir 4x12 cabinet with Celestion speakers
- Gain
- 7.5
- Bass
- 5
- Mid
- 5.5
- Treble
- 7
- Presence
- 6.5
- Reverb
- 0
Different guitar or pedals? Get Holy Wars adapted to your exact rig
These settings were generated for the gear named above. ToneAdapt adapts Megadeth's tone to your own guitar, pickups, amp and pedals in seconds.
Frequently asked questions
What are the best Marshall G15RCD settings for Holy Wars?
Set Gain 6.5, Bass 5, Treble 7, Reverb 0, Contour 6.
Which pickup should I use for Holy Wars?
Bridge pickup, with the guitar's tone at 10 and volume at 10.
What gear did Megadeth use on Holy Wars?
Guitar: Jackson KV Pro Dave Mustaine Signature (likely with Bill Lawrence L-500XL bridge pickup). Amp: Marshall JCM800 2203 head into DeCuir 4x12 cabinet with Celestion speakers.
Will these settings work with my guitar?
These settings were adapted for a Ibanez GIO GRX40. Different pickups change how much gain and treble you need. ToneAdapt adapts the tone to your exact guitar, pickups, amp and pedals.
Holy Wars on other amps
Popular songs on the Marshall G15RCD
- Master of Puppets · Metallica
- Enter Sandman · Metallica
- Walk · Pantera
- Sweet Child O' Mine · Guns N' Roses
- Welcome Home (Sanitarium) · Metallica
- Whole Lotta Love · Led Zeppelin
- Seven Nation Army · The White Stripes
- Creep · Radiohead
- Back in Black · AC/DC
- Iron Man · Black Sabbath
- Highway to Hell · AC/DC
- Like a Stone · Audioslave
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.