Aria Lil' RAT Distortion vs Fulltone OCD Obsessive Compulsive Drive
The Aria Lil' RAT Distortion and the Fulltone OCD Obsessive Compulsive Drive are both pedals sharing full, harmonically rich, op-amp. The Aria Lil' RAT Distortion leans crunchy. The Fulltone OCD Obsessive Compulsive Drive leans fuzzy and transparent.
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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.35% — somewhat different
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Derived from overlapping tonal signals across both listings.- full
- harmonically rich
- op-amp
- bright
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.The Aria Lil RAT Distortion is the ProCo Lil RAT mini distortion pedal distributed through Aria in the UK. The ProCo Lil RAT packs the full 100-percent analog circuit of the classic ProCo RAT2 into a mini enclosure just over 2 inches wide. Controls include Distortion (gain), Filter (high-frequency rolloff), and Volume, mirroring the full-size RAT circuit and LM308-based clipping character. True bypass, rear-mounted jacks. 9V battery or standard center-negative power. The RAT circuit covers heavy crunch and saturated distortion used across rock, metal, and alternative guitar for decades.
The Fulltone OCD Obsessive Compulsive Drive is a boutique overdrive pedal known for a warm, full, genuinely tube-like response that bridges the gap between overdrive and distortion rather than sitting cleanly in one camp. Its drive control ramps smoothly from dirty, harmonically rich overtones into fuller saturated distortion, and it responds strongly to pick attack and guitar volume the way a real amp does. An HP/LP switch shapes the voicing: HP pushes more distortion with a pointed, cutting midrange, while LP is subtler and lets more of the amp's own character through. It suits players wanting an amp-like, dynamically responsive drive that can cover both classic-rock overdrive and heavier distortion tones from one pedal.
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Genres this gear is documented as being used in.- Alternative Rock
- Rock
- Metal
- Classic Rock
- crunchy
- fuzzy
- transparent
- mid-forward
- edge of breakup
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Occasions this gear suits — judged per model, or derived from its wattage, connectivity and category.- Busking
- Live