One amp settings — Marshall Code 50

The Metallica guitar tone for “One”, dialed in for a Marshall Code 50 with a Ibanez AZ2402. Studio version, ...And Justice for All (1988) — iconic clean intro & verses

Original rig

Roland JC-120 Jazz Chorus, ESP MX-220 with EMG 60 (neck), built-in Roland stereo chorus

Pristine, chorus-treated, slightly scooped high-headroom 80s solid-state clean

Amp settings — Marshall Code 50

CHANNELClean American (CL American) Preamp + Classic Marshall 100W Power Amp + 1960V 4x12 CabBRIGHToffBOOSToff

Knob	Setting (0–10)
Gain	2
Bass	6
Mid	4
Treble	7
Reverb	3
Master	5

Don’t have a Marshall Code 50? See this song on other amps → Match your own rig →

Guitar

PICKUPneck TONE10 VOLUME10

Signal chain

01Onboard Chorus (Marshall Code MOD Block)

Enable the internal MOD block set to Classic Chorus

Speed 4 · Depth 6 · Tone 5

02Onboard Studio Reverb (Marshall Code REV Block)

Set to Studio Room reverb to match the dry, crisp album space

Decay 3 · Level 3

Why these settings

The Clean American preamp model on the Marshall Code replicates the ultra-clean headroom and sparkle of the Roland JC-120. Mid frequencies are scooped slightly down to 4 with treble elevated to 7 to recreate the crisp bite of active EMG 60 pickups on your passive Seymour Duncan Hyperion humbuckers. Gain is kept low at 2 to ensure zero power-stage breakup during arpeggios.

PRO TIPPick right next to the bridge saddles with a stiff 1.0mm+ pick while using the neck pickup; this produces the sharp, percussive attack of Hetfield's pick stroke while preserving the deep body of the neck position.

Get this tone on your amp

These settings are for a Marshall Code 50. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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Marshall Code 50 settingsALL SONGS FOR THIS AMP One on other ampsSAME SONG, YOUR AMP Metallica tonesALL SONGS Metallica on the Marshall Code 50SAME ARTIST, SAME AMP Ibanez AZ2402 tonesSAME GUITAR Tone libraryEVERYTHING

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