Psychosocial amp settings — Boss Katana 50 MkII
The Slipknot guitar tone for “Psychosocial”, dialed in for a Boss Katana 50 MkII with a Squier Bullet Stratocaster. Studio version, All Hope Is Gone (2008)
Jim Root: Fender Jim Root Stratocaster → Mesa Boogie Dual Rectifier (Gain 8, Bass 6, Mid 5, Treble 7, Presence 7). Mick Thomson: Ibanez MTM1 → Marshall JCM800 2203 with Maxon OD808 boost in front. Drop B tuning (B-F#-B-E-G#-C#).
| Knob | Setting (0–10) |
|---|---|
| Gain | 8 |
| Bass | 5 |
| Mid | 4 |
| Treble | 6 |
| Presence | 6 |
| Reverb | 0 |
The Katana's Brown channel emulates the tight saturation of a modded Marshall, which sits between the original Dual Rectifier and JCM800 blend. Dropped mid from 5 to 4 because the Katana Brown voice is already mid-forward compared to a scooped Rectifier. Pulled treble from 7 to 6 and presence from 7 to 6 — the Squier's ceramic single-coil bridge pickup is brighter and thinner than Root's EMG-equipped humbucker Strat, so less high-end compensation is needed. Bass dropped to 5 to keep the low B articulate through a 12-inch speaker; the original's 4x12 handled more low-end mass.
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These settings are for a Boss Katana 50 MkII. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.
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