The Shure Beta 57A® is a high output supercardioid dynamic microphone designed for professional sound reinforcement and project studio recording. It maintains a true supercardioid pattern throughout its frequency range. This insures high gain-before-feedback, maximum isolation from other sound sources, and minimum off–axis tone coloration.
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
NOTE: The curve above shows on-axis response at a distance of 2 feet from a uniform sound source. Your response may vary, depending on microphone position.
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.
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