The small high-performance CK91 condenser capsule features a smooth, well-balanced frequency response and a consistent cardioid polar pattern. It is the ideal choice for critical live broadcast and studio applications where consistent off-axis sound suppression is required. The CK91 is part of the Blue Line series and works exclusively with the SE300 B preamp module. Its robust Modulock ™ bayonet coupling allows for quick and easy capsule changes.