Cardioid Head Capsule only, for Modular Microphone AT4900b-48 AT4051b-EL Cardioid element only Overview AT4051b-EL Cardioid Head Capsule only, for Modular Microphone AT4900b-48 Cápsula cardioide AT4051b-EL para el cuerpo electrónico AT4900b-48. Features AT4051b-EL cardioid head capsule for AT4900b-48 electronic body. Additional interchangeable capsules are available in omnidirectional (AT4049b-EL) and hypercardioid (AT4053b-EL). Specially engineered to meet the most critical acoustic requirements of professional recording, broadcast and sound reinforcement High front-to-back rejection ratio cardioid polar pattern improves isolation of desired sound source Rugged turned-brass head capsule housing for enduring dependability State-of-the-art design and manufacturing techniques ensure compliance with Audio-Technica's stringent consistency and reliability standards Specifications Microphones Element Externally polarized (DC bias) capacitor Polar Pattern Cardioid Frequency Response 20 - 20.000 Hz Weight 23 g