Schlappi Engineering Boundary Layer - Black 2025 version Experimenting with the low-pass filter

Experimenting with the low-pass filter cutoff frequency and the dry/wet mix will yield tones as strange or subtle as desired

Add midi to your favourite analog rhythm box with the Tubbutec uniPulse

interweaving phrases

Digital drum machines

enabling both positive and negative modulation for more complex sound shaping

Schlappi Engineering Boundary Layer - Black 2025 version Experimenting with the low-pass filterBoundary Layer is a triple cycling slew acting as a swiss army knife of modulation functions. Each of the channels can act individually as a modulation oscillator, voltage controlled slew (including portamento), or AR AD envelope (decay or release determined by choice of input). They are tied together by three inputs which affect all channels, as well as three outputs which select the MAX, MID, and MIN of all three voltages. Width: 16HP Depth: 32mm