No forum threads about this effect yet.
- Electro-Harmonix Bass Balls - Twin Dynamic Filters for Bass Guitar
- Behringer VB1 Vintage Bass - Dual Dynamic Filter
- Eleca EBB-1 Bass Distortion - Twin Dynamic Filter (copy?)
- Eleca Best Bass
- Fuzzy Balls Envelope Filter (modified clone)
- Mark Hammer's Ultraballz (modified clone)
- Mooer Audio MFT1 Bass Sweeper
- Shunin BassBalls
Here's some code to post a link with image on forums, eBay, websites,...