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3Leaf Audio Proton Envelope Filer
DescriptionGood condition, special color scheme, Velcro on bottom.
Comments from forums and Reddit
Discussed in Current filter stash, what are holding? in the TalkBass community
3Leaf Audio Proton Envelope Filer 3Leaf Audio Proton Envelope Filer | Reverb There's a v3 on Reverb in a cool colorway. Price is a little high but you could try sending them an offer. Edit: no affiliation ... more