June 16, 2019 birdkids RAVEN 100% Analog. Synthesizer Voice. Pre-order now! RAVEN’s primary, system-architectural goal is capturing the raw non-linear texture and non-deterministic honesty of a 100% analog circuit. 1149 € MSRP bundles available via Capturing the spark. Successfully funded on Kickstarter. functional overview overview PDF / blank patch sheet Technical Definitions / Signal Flow Diagram (rev 1.3) PDF Sign up to the birdkids newsletter for fresh updates, exciting stories and upcoming events.