One amp settings — Harley benton HB-10G

The Metallica guitar tone for “One”, dialed in for a Harley benton HB-10G with a Harley banton SC-400 SBK. Studio version, ...And Justice for All (1988)

Original rig

Mesa/Boogie Mark IIC+ head, ESP MX-220 with EMG pickups, no pedals on the heavy rhythm sections

Tight, scooped thrash rhythm with aggressive pick attack and dry, precise low end

Amp settings — Harley benton HB-10G

Knob	Setting (0–10)
Gain	8
Bass	6
Mid	2
Treble	7
Presence	0
Reverb	0
Master	5

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Guitar

PICKUPbridge TONE10 VOLUME10

Why these settings

The HB-10G is a small solid-state practice amp with limited headroom and a darker voicing than the original Mark IIC+. I've pushed gain to 8 to compensate for the lower output of your passive SC-400 humbuckers versus Hetfield's active EMGs. Mids are dropped to 2 to approximate the famous Justice-era scoop, but this amp won't achieve the same tight low-end definition—keep bass at 6 to avoid flub. No presence control exists on this amp, so treble at 7 handles the upper bite.

PRO TIPPalm mute hard and pick directly over the bridge pickup pole pieces with downstrokes only—the Justice tone lives in the pick attack, not the amp. Your amp will compress and lose note separation at high gain, so back off your picking pressure slightly to keep the riff articulate.

Get this tone on your amp

These settings are for a Harley benton HB-10G. 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.