Cusack Music Orthrus Distortion vs Mad Professor Mad-Rbo
The Cusack Music Orthrus Distortion and the Mad Professor Mad-Rbo are both pedals sharing bright, mid-forward. The Cusack Music Orthrus Distortion leans crunchy. The Mad Professor Mad-Rbo leans transparent and edge of breakup. Current prices: $189 vs $188.58.
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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.52% — moderately similar
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Derived from overlapping tonal signals across both listings.- bright
- mid-forward
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.$189via Reverb
$188.58via Reverb
The Cusack Music Orthrus is a US-built high-gain distortion pedal based directly on a true amplifier preamp circuit, with an unconventional three-band EQ where Treble reaches into very high frequencies, Mid works more like a pick-attack and sizzle control centered on the upper midrange, and Bass behaves closer to a cabinet-resonance control than a simple low-end knob. Gain and volume run deep, giving serious headroom for everything from crunchy rhythm to saturated lead distortion, with the reworked EQ voicing doing most of the tonal heavy lifting rather than the gain stage alone. A momentary or latching boost, switchable between 3, 6, and 9dB, adds a warm, saturated push for solos, and a stutter/kill switch chops the signal for rhythmic effects. It suits players chasing trash and metal tones who want an amp-derived EQ with real character rather than a standard three-band voicing.
The Mad Professor Royal Blue Overdrive covers a wide range from light overdrive into full distortion, with Volume, Distortion, Treble, and Bass controls. At its lowest Distortion setting the pedal behaves almost like an EQ stage, adding minimal filtering for a transparent boost. Turning the Distortion knob up moves it into a crunchy, tube-amp-like breakup and eventually into heavier gain. Both Treble and Bass are boost/cut shelving controls, giving broad tonal shaping rather than a single fixed voicing. It is built to go from subtle amp-like grit to genuine distortion within one pedal, and forms the basis of Mad Professor's Supreme A-side circuit.
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Genres this gear is documented as being used in.- Metal
- Classic Rock
- Blues
- Rock
- crunchy
- transparent
- edge of breakup