Sosumi is a dual Low Pass Gate based on Buchla 292 design. It features two identical filters which utilize vactrols in order to provide simultaneous control over the Amplitude and Frequency of the input signal. Due to the nature of vactrols though each channel and each Sosumi will sound slightly different. Also, vactrols are handmade in order to achieve an ideal response. Sosumi excels in creating organic plucky and percussive sounds from harmonically rich sounds!