A national acrobat amp settings — Boss Katana 50 MkII
The Black sabbath guitar tone for “A national acrobat”, dialed in for a Boss Katana 50 MkII with a Epiphone Les Paul Classic. Studio cut, Sabbath Bloody Sabbath (1973)
Gibson SG Special (Monkey SG with custom John Birch / P-90 pickups) -> Dallas Rangemaster treble booster (modified) -> Laney Supergroup 100W Tube Head -> Laney 4x12 Cabs
| Knob | Setting (0–10) |
|---|---|
| Gain | 6 |
| Bass | 6 |
| Mid | 8 |
| Treble | 7 |
| Reverb | 1 |
| Master | 5 |
01Katana Built-In Booster (Treble Booster mode)
Engage the Katana onboard Booster dialed to the Treble Booster / Dallas Rangemaster voice
Iommi's tone relies on a Dallas Rangemaster treble booster driving cranked Laney Supergroup amps into heavy mid saturation. On the Katana 50 MkII, the Crunch amp type provides the vintage British power-amp foundation, while the onboard Treble Booster effect cuts excessive low flub and pushes the essential biting 2-3kHz midrange. The Katana 50 MkII lacks a physical presence knob on the faceplate, so mid and treble are set forward to capture the cutting Sabbath attack.
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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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