Endangered Audio Research Eurorack modules are some of the finest handmade boutique modules available in the world. Designed and crafted in North Carolina, these USA-made synth modules have the highest-quality components and manufacturing standards. These modules are made to last a lifetime. Plated through-hole PCBs and hand-assembled components make these modules reliable and ready for a beating. Their metalphoto faceplates are scratch resistant and stand out boldly in your rack.