Bassballs

Electro-Harmonix introduced Bassballs as a twin envelope filter for bass. Two filters sweep together for a distinctive sound.

Sens controls envelope sensitivity. Distortion switch adds grit. The twin filters create a different character than single-filter designs.

Bassballs has been in production since the 1970s. Used by Flea, Justin Chancellor, and countless other bass players.

The twin envelope filter that defined bass synth sounds.