Large-diaphragm Condenser Mic with Multiple Polar Patterns and Dual Output. Transform Ideas into Masterpieces. The Austrian Audio OC818 multi-pattern condenser microphone combines classic design with modern innovation to go where no mic has gone before. Our handmade CKR12 ceramic capsule reimagines the celebrated CK12 capsule to deliver exceptional detail and nuance while also handling extremely high SPL. Each OC818 is manufactured and tested to the highest specifications at our Vienna facility, ensuring premium build quality and performance you can trust. OC818 is the most versatile condenser microphone ever made, and is destined to chart a legacy of its own.