The Sabbra Cadabra is a custom-tuned Rangemaster-based booster combined with the pre-amp section of a Laney Supergroup. The two circuits are carefully voiced together to achieve the riffs of doom tone that Tony Iommi is so well known for. Four controls (RANGE, GAIN, PRESENCE, and VOL 4) allow you to fine-tune the response to your guitar and rig. If you’re familiar with Sabbath’s live album, ‘Past Lives’, then you’ll understand where Catalinbread was going with this pedal – huge, raw, responsive!