The Boundary Layer: Where Chaos Theory Meets Modular Synthesis

Schlappi Engineering Boundary Layer Eurorack Module

At first glance, the Boundary Layer might seem like a complex slew limiter—and it is. But calling it “just” a slew limiter is like calling a Swiss Army knife “just” a blade. This triple cycling slew is simultaneously a modulation oscillator, voltage-controlled portamento, envelope generator, and drone synthesizer, often all at once.