Whirlwind OC Bass Optical Compressor Pedal

The OC Bass is Whirlwind's optical compressor and limiter for bass. Optical gain reduction has a slower, more program-dependent recovery than a VCA design, which is exactly what suits a bass part where you want the notes evened out without hearing the pedal work.

As a limiter it also keeps a slap or a hard pick attack from running away into the front end of an amp or a DI.