The 1961 Fender Twin Amp... The Vibrato in this amp was actually more than Tremolo. Vibrato? Tremolo? Modulated dual filter? Phasor? Leo called it “vibrato” which isn’t technically correct. It is an amazing sound though!! Truly the “sinewave” Brownface tremolo sound, folks are looking for. Catalinbread used this as the starting point adding a lot more range of speeds and much more depth.
The controls are simple, but powerful. The sinewave LFO is controlled by two knobs, DEPTH and RATE. The Depth control is able to go from just a slight shimmer in your sound to undulating ocean waves. The Rate ranges from molasses slow phase sweeps to lush tremolo and skittery chops. The Volume, obviously, controls the loudness and was designed to pull double duty as a fantastic boost when the Depth is off.
Like most other Catalinbread pedals, the Pareidolia was designed for both 9v and 18v operation, the latter giving a more pronounced up-front sound to the effect. Whether the Pareidolia is placed pre-dirt, post-dirt, or sandwiched between, this pedal still sounds great.