Electro harmonix Bassballs Twin Dynamic Filters Envelope Filter

Not one, but two narrow filters sweep your tones under control of the envelope, generating very unique vocal-like sounds. A distortion switch enriches the harmonics. The response control varies the sweep range determined by your attack. Not only designed for and great on bass guitar, but also very funky on guitar.

An envelope follower for bass players who want to be unique and funky!

Twin tuned filters sweep your signal creating a unique vocal tone. Two narrow filters sweep your tones under control of the envelope, generating very unique vocal-like sounds.

New in the Box