War Pigs amp settings — Marshall MG30CFX

The Black Sabbath guitar tone for “War Pigs”, dialed in for a Marshall MG30CFX with a morgan 46. Studio version, Paranoid album (1970)

Original rig

Gibson SG Special ('Monkey') with P-90 bridge pickup → Dallas Rangemaster treble booster → Laney Supergroup (Marshall Plexi-equivalent voicing)

Dark, thick doom crunch with pronounced midrange bark and controlled low-end — not scooped, not fizzy

Amp settings — Marshall MG30CFX

CHANNELOD1 (Overdrive 1)

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

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Guitar

PICKUPbridge TONE7 VOLUME10

Why these settings

The MG30CFX's OD1 channel approximates the Plexi-style breakup Iommi used. Mids pushed to 7 to replicate the Rangemaster's midrange boost you're missing without a pedal — this is critical for the Sabbath 'wall of sound' that cuts through. Bass dropped to 4 because the MG series runs boomier than a real Plexi, and Iommi kept his low-end tight to prevent mud. Tone knob rolled to 7 to tame the MG's solid-state high-frequency harshness that a tube amp wouldn't produce.

PRO TIPIommi played mostly on the E and A strings for the main riff — the higher strings sound too bright for authentic Sabbath darkness. Dig in hard with your pick near the bridge for that aggressive attack, and let notes ring into controlled feedback on sustained chords.

Get this tone on your amp

These settings are for a Marshall MG30CFX. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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