I just landed a Beigel Sound Labs Envelope Controlled Filter! It's like a Mutron III is a rackmount casing but with an expanded control scheme like the Meatball. It was developed by the guy who designed the Musitronics stuff for the guitar player in Steely Dan in 1979 to be a true studio quality device. He only wound up making about 50 of them. I'm really exited because it has full attack/decay controls, start and stop frequency for the filter, resonance, and an effects loop. Hooray!
