The C547 is a hypercardioid professional boundary layer microphone. The rugged, non-crush case and a switchable bass-cut filter make the C547 an ideal choice for tough on-stage assignments. Using PCC (Phase Coherent Cardioid ) technology with hypercardioid polar pattern, the microphone provides high directivity and neutral sound. The C547 is built on the same acoustical components as the legendary C747 V11.