Built specifically around Tony Iommi's tone — his Laney Supergroup amps and Dallas Rangemaster treble booster. If you want the foundation of that sound rather than a vague approximation of it, this is where to start.

Runs from 3V to 18V. Higher voltage sharpens the attack and adds headroom. Lower voltage softens and thickens. The Range control adjusts the frequency of the boost. It does one thing very well.