Features of the Shure BETA57A Handheld Dynamic Microphone – Super-Cardioid: Tailored frequency response provides drums, guitars, vocals, and horns with studio quality sound Uniform supercardioid pattern for high gain-before-feedback and superior rejection of off–axis sound< Hardened steel mesh grille that facilitates use of proximity effect and resists wear and abuse Neodymium magnet for high signal–to–noise ratio output Minimally affected by varying load impedance Advanced pneumatic shock mount system that minimizes transmission of mechanical noise and vibration Legendary Shure quality and reliability Specifications: Type Dynamic (moving coil) Frequency Response 50 to 16,000 Hz Polar Pattern Supercardioid, rotationally symmetrical about microphone axis, uniform with frequency. Output Level (at 1,000 Hz) Open Circuit Voltage -51 dBV/Pa* (2.8 mV) *1 Pa = 94 dB SPL Impedance Rated impedance is 150 ohms (290 ohms actual) for connection to microphone inputs rated low Z. Phasing Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3. Connector Three-pin professional audio connector (male XLR type). Case Silver blue enamel-painted die cast metal with hardened, matte-finished steel mesh grille. Adjustable Stand Adapter Slip-in, adjustable through 180 degrees, with standard 5/8″-27 thread. Net Weight 275 grams (9.6 oz)
