One amp settings — Ibanez SW-20
The Metallica guitar tone for “One”, dialed in for a Ibanez SW-20 with a Fender Mustang. Studio version, ...And Justice for All (1988) — iconic clean intro & verses
Roland JC-120 (clean) / Mesa Boogie Mark IIC++ & Mark IV (heavy), ESP MX-220 with EMG 60/81 pickups
| Knob | Setting (0–10) |
|---|---|
| Gain | 2 |
| Bass | 5 |
| Mid | 4 |
| Treble | 7 |
| Master | 5 |
The Ibanez SW-20 is a compact solid-state bass practice amp with high clean headroom and a 4-band EQ (Bass, Low-Mid, High-Mid, Treble), making it surprisingly capable of replicating the pristine Roland JC-120 clean tone. Set Gain low at 2 to avoid any input clipping, scoop Low-Mid slightly to 4, and elevate Treble to 7 to compensate for the darker bass speaker. Use the Mustang's neck pickup to capture the round, glass-like clarity of James Hetfield's active EMG 60 neck pickup. Heavy section: switch to bridge pickup and engage a high-gain distortion pedal once acquired.
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These settings are for a Ibanez SW-20. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.
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