Hermetic Modular is a boutique Eurorack synthesizer manufacturer based in Seattle, Cascadia.

Every hardware release includes an open firmware layer with a permissive (MIT) license and a powerful SDK that lowers the barrier from DSP to embedded programming. Modules feature field-programmable jacks, enabling circuits to be changed in real time. We want modules to be extended, hacked, and making music in ways that surprise us.

Spagyros Alchemy Lab, Echoa Alchemy Lab and Alchemy Lab Custom Firmware are among Hermetic Modulars most popular products.