Instrument microphone delivers an exceptionally uniform cardioid pattern to minimize feedback. It features a silent magnetic reed on and off switch with lock-on option and selectable dual-impedance operation. Shipped connected for low-impedance operation, the 545SD features a silent magnetic reed on/off switch with lock-on option. A favorite for instrument pickup and recording, the 545SD can also be used on lecterns in public address systems. WHAT POLAR PATTERN DOES THE 545SD HAVE? The 545SD Classic Unidyne® Instrument Microphone is a dual-impedance, unidirectional, dynamic microphone.
