DINSync has introduced the VCF303 filter module for Eurorack modular synthesizers. The VCF303 is inspired by the classic Roland TB-303 Bassline Synthesizer and its hugely influential ‘acid’ sound. The controls and CV options will be familiar to anyone that’s used a 303 or 303-inspired synth, including cutoff, resonance, env mod, decay, accent, overdrive and volume.