Tone library / Black Sabbath / Sweet Leaf

Sweet Leaf amp settings — Boss Katana 100 MkII

The Black Sabbath guitar tone for “Sweet Leaf”, dialed in for a Boss Katana 100 MkII with a Epiphone ES-335. Studio version, Master of Reality (1971)

Original rig

Gibson SG Standard (C# standard tuning), Laney Supergroup LA100BL or Marshall Super Bass 100W (cranked), Dallas Rangemaster treble booster + silicon Fuzz Face (or modified Rangemaster with fuzz circuit)

Crushing, bass-heavy doom with thick midrange punch and restrained treble
Amp settings — Boss Katana 100 MkII
CHANNELBrownBRIGHToffBOOSToff
GAIN 0 BASS 10 MID 8 TREBLE 3 PRESENCE 4 REVERB 0 MASTER 7
KnobSetting (0–10)
Gain0
Bass10
Mid8
Treble3
Presence4
Reverb0
Master7
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Guitar
PICKUPbridge TONE6 VOLUME10
Signal chain

01Boss DS-1 Distortion (or any silicon fuzz/distortion)

RECOMMENDED — not owned. A silicon Fuzz Face (Dunlop JHF1) or DS-1 into the Brown channel mimics the Rangemaster+fuzz stack. Without this pedal, crank amp gain to 8 instead and accept a slightly cleaner result.

Tone 6 · Level 8 · Dist 9
Why these settings

Katana Brown channel set clean (gain 0) because the fuzz pedal is the gain source; without the pedal, set gain to 8 and accept less saturation. Bass maxed at 10 vs original's 6-9 to compensate for ES-335 humbuckers lacking the SG's aggressive midrange bark and to offset the Katana's tighter low-end voicing vs a cranked Laney. Mid pushed to 8 (vs original 6) because Brown channel is slightly scooped compared to a Laney. Treble cut hard to 3 because C# tuning and maximum fuzz need zero brightness. Retune to C# standard (or D standard minimum) or the riff loses all doom weight.

PRO TIPIommi's vibrato bends the riff slightly sharp on purpose due to his prosthetic fingertips — emulate this by applying slight, slow bends at the end of sustained power chords rather than holding them rigidly in tune. Palm-mute with authority but let each chord ring a fraction before muting; the space between notes carries as much weight as the notes themselves in doom.

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These settings are for a Boss Katana 100 MkII. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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