Catalinbread Formula 51 vs Mad Professor Super Black
The Catalinbread Formula 51 and the Mad Professor Super Black are both pedals sharing transparent, crunchy. The Catalinbread Formula 51 leans warm and compressed. The Mad Professor Super Black leans glassy and bright. Current prices: $134.99 vs $219.
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Blended from circuit-archetype lineage, dynamic feel, tone-signal overlap and tone-vector distance — the tone vector itself is derived from editorial description text, not a measured acoustic signal, so this reflects how similarly the catalog copy describes the two, not a lab measurement. Shown only within a gear class, and only where there's enough evidence to be meaningful.50% — moderately similar
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Genres both listings are associated with.- Blues
- Country
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Derived from overlapping tonal signals across both listings.- transparent
- crunchy
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.$134.99via Reverb
$219via Reverb
The Catalinbread Formula 51 is a Fender amplifier-inspired overdrive from Portland, Oregon, part of the Formula series that captures the tonal character of specific Fender amplifier designs. Like the Formula 55 and Formula 5F6, the Formula 51 extracts the warmth, bloom, and harmonic character of a Fender amp driven naturally, with the specific voicing and response of its inspiration circuit. Covers the range from clean boost through warm, organic overdrive with natural compression and American amp character. Made in Portland by Catalinbread.
The Mad Professor Super Black is an overdrive pedal from Mad Professor inspired by the Fender Blackface amplifier circuit, delivering the clean, chimey, harmonic brightness associated with Fender Blackface and Super Reverb amplifiers pushed into natural breakup. The Super Black captures the specific American clean-to-light overdrive character of the blackface Fender era, suited to blues, country, and clean-to-crunch American guitar styles.
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Genres this gear is documented as being used in.- Alternative Rock
- Rock
- Americana
- warm
- compressed
- glassy
- bright
- edge of breakup