One by Metallica Amp Settings (Mesa/Boogie Mark IV Tone Guide, 2026)

1. Volume

• Keep the guitar volume knob on full (10) for maximum gain and sustain.
• Use your guitar’s volume knob to slightly roll back during clean intro parts (around 6–7), then increase for heavier sections.
• Ensure the amp/channel volume is balanced with the gain to avoid muddiness.

2. Tone

• Set the tone knob on the guitar to maximum (10) for bright articulation.
• Maintain clarity for palm-muted chugging and sustain in solos.
• Use amp EQ settings: Bass around 5–6, Mids at 3–4, Treble at 6–7 for a scooped metal tone.
• Add a touch of reverb or very light delay for solo sections if desired.

3. Pickup Selector

• Use bridge pickup for rhythm and heavy distorted sections.
• Use neck pickup or middle position for the clean intro and arpeggios for a smoother tone.
• Switch back to bridge pickup for the main riff and solo for added attack and bite.

4. Humbucker or Single Coil Preferred?

• Humbuckers are preferred for their higher output and noise-cancelling properties.
• Delivers tight low end and clarity under high-gain distortion.
• Ideal for metal tones and fast palm-muted riffs like those in “One.”

5. Ideal Guitar Type

• Explorer-style body (as used by James Hetfield) with solid mahogany build for thick tone and sustain.
• Dual humbucking pickups (EMG 81/60 or 81/85 active pickups are ideal).
• Set-neck or neck-through construction for better sustain.
• Fixed bridge for tuning stability—no tremolo needed for most parts of “One.”

• ESP LTD James Hetfield Snakebyte: Signature model with aggressive tone suited for rhythm parts.
• Gibson Explorer: Classic Hetfield shape with rich, full-bodied distortion.
• Mesa/Boogie Mark IIC+ Amp: Iconic amp used on the original recording, known for tight high-gain tones.
• Boss HM-2 Heavy Metal Pedal: Adds extra bite and sustain for lead work.
• Dunlop Cry Baby Wah: Useful for expressive solos, as heard in the intro solo section.
• EMG 81/60 Pickups: Active pickups that provide clarity and punch, used by Hetfield.
• Boss NS-2 Noise Suppressor: Helps maintain a tight sound with high-gain settings.
• Shure GLXD16 Wireless System: For clean signal transmission during live settings.
• Ernie Ball 10-46 Strings: Balanced gauge for rhythm chugs and fluid leads.
• Planet Waves Locking Strap: Ensures stability during heavy playing.

• Use a high-gain amp setting for sustained lead notes and tight rhythm.
• Set distortion for clarity—avoid excessive fuzz or muddiness.
• EQ settings: boost mids slightly, cut low end to tighten chugs, and preserve high-end clarity.
• Use a noise gate to eliminate string noise and control palm muting.
• Apply delay and reverb conservatively for lead sections to maintain articulation.
• Bridge pickup is preferred for rhythm and precision during fast alternate picking parts.
• Use an overdrive pedal in front of the amp to boost solos and tighten rhythm tone.
• Down-pick rhythm parts for aggressive attack; practice stamina for the outro.
• Match tuning and string gauge to the original recording (standard tuning with heavier gauge for punch).
• Use compression subtly on clean intro to even out dynamics.