Beta 87A Vocal Microphone The Shure Beta 87A is a premium quality supercardioid hand-held electret condenser vocal microphone with exceptionally smooth frequency response and high sound pressure level capability. Used for professional sound reinforcement, broadcasting, and studio recording applications, the Beta 87A combines superb performance with the ruggedness needed for touring and field production. The Beta 87A features a controlled low-frequency roll-off that compensates for proximity effect and prevents the “boomy” sound often associated with close pick-up. The characteristic Shure presence rise brightens the upper midrange. The tight supercardioid pattern, with null points at approximately 125 degrees, provides maximum isolation from other vocalists or instruments while offering minimal off-axis coloration. The Beta 87A operates on phantom power. Leading the field for studio-quality sound in live performance, the Beta 87A has a smooth, tailored response for warm, accurate sound. Its supercardioid design provides maximum isolation from nearby vocalists or instruments. Supercardioid, Condenser. Cartridge Type Condenser (electret bias) Frequency Response 50 to 20,000 Hz view larger Polar Pattern Supercardioid Output Impedance Rated at 150 ohms (100 ohms actual +/- 20%) Recommended minimum load impedance: 800 ohms Sensitivity (at 1,000 Hz) Open Circuit Voltage -52.5 dBV/Pa (2 mV) (1 Pa = 94 dB SPL) Clipping Level (at 1,000 Hz) 1000 ohm Load: -6 dBV (0.5 V) Maximum SPL (at 1,000 Hz) 140.5 dB (0.25% THD, 1000 ohm load) Self-Noise (equivalent sound pressure level; measured with true rms voltmeter) 23.5 dB typical, A-weighted 25.5 dB typical, weighted per DIN 45 405 Dynamic Range 117 dB (maximum SPL to A-weighted noise level) Signal-to-Noise Ratio 70.5 dB at 94 dB SPL (IEC 651) (S/N ratio is difference between 94 dB SPL and equivalent SPL of self-noise A-weighted.) Polarity Positive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 Power Phantom Supply Requirement: 11 to 52 Vdc, positive at both pins 2 and 3 Current Drain: 1.0 to 1.2 mA Connector Three-pin (XLR) professional audio Case Aluminum construction with blue metallic finish, and hardened steel grille with nickel satin chrome plating Dimensions See User Guide Net Weight 207 grams (7.6 oz) A25D Break Resistant Mount The A25D is a break resistant mount for the SM58, SM57, SM87A, Beta 87A and all other microphones with 3/4-inch and larger handles. Available in quantities of 10 as the A25DM. A55M Isolation Mount Shock Stopper Isolation Mount/Swivel Adapter, Full Mount, for SM57, SM58, Beta 57A, Beta 58A, Beta 87A, Beta 87C or any Shure tapered handle mic. A55HM Snap-in "Shock Stopper" Mount Shock Stopper Isolation Mount/Swivel Adapter, Half Mount, for SM57, SM58, Beta 57A, Beta 58A, Beta 87A, Beta 87C or any Shure tapered handle mic. A85WS Microphone Windscreen Windscreen, Foam, for SM85, SM86, SM87A, Beta 87A, Beta 87C, and BG5.1 Microphones R193 Cartridge for Beta 87 and Beta 87A Direct replacement cartridge for the Shure Beta 87 and Beta 87A Microphones. RK312 Grille for Wired & Wireless Beta 87, Beta 87A, Beta 87C Grille for Wired and Wireless Beta 87, Beta 87A, Beta 87C Microphones. User Guide English, French, German, Italian, Spanish 191 KB PDF Quick Links -------------------------------------------------------------------------------- FAQ's for Beta 87A Beta Microphones See also Beta 87C , Beta 58A --------------------------------------------------------------------------------