3Leaf Audio Proton v3 $170 ***SOLD*** Great envelope filter with the improved sensitivity from v1 and v2. Cool purple finish in excellent condition with velcro on the bottom. It comes with original box. Basic Audio Throbby $115 ***SOLD*** Excellent condition with velcro on the bottom. I have the original box. Amazing tremolo. US Sales only. I'm not looking for trades at this time. I will only ship to a confirmed Paypal address.