Circuit is an Audio Unit effect plugin for multi-band waveshape modelling. It splits the signal into three frequency bands, and passes each band through its own processing engine which offers 12 different algorithms – from sine-based waveshape transformers and foldback distortion, to circuit-bent filters, lo-fi and ring modulation. These models can be further modulated by an input envelope follower, tempo-synchronized LFO or two-dimensional Lorenz attractor. All this is wrapped into a stylish, colour-coded interface based on our innovative design language, which makes it incredibly fun to work with.