Non-Linear Reverb

The TC6000 Bank F2 Decade 5 has nonlinear reverb patches, including 2 based directly on the AMS RMX NonLin program.

TC6000 NonLin

While the sound can be hot in the mix, front and center, synthesizing an absurd sound, with an 80s touch, it is also used in a more subliminal way to lift a track up out of a crowded mix, overcoming masking through the artificial extension of duration.  Short, transient sounds like so much hand percussion are good candidates.