Designed and manufactured in Austria, its high sensitivity and low self-noise allow it to handle everything from a whisper to extreme sound pressure levels without distortion, making it the perfect choice for studio, live and broadcast applications. The unique ceramic capsule design is so consistent that the OC18 can be paired with any other OC18 or any OC818 configured in cardioid mode. Same classic cardioid handcrafted design as the OC818. Handmade CKR6 ceramic capsule like the CKR12 capsule, but with a single diaphragm. All Austrian Audio OC18 and OC818 are within 1 dB of each other, making any two microphones a stereo pair.