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International: 408-573-1400Shure Beta 87A Vocal Condenser Microphone
Shure Beta 87A Vocal Condenser Microphone is a premium quality supercardioid hand-held electret condenser with exceptionally smooth frequency response and high sound pressure level (SPL) 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. The Beta 87 has consistently been a top choice of performers and audio technicians around the world due to its superb accuracy and detail, and rich vocal production. This long-standing favorite now features a new design and has been renamed the Beta 87A. In response to user requests, Shure has redesigned this microphone by just slightly thickening the handle for a more comfortable feel when hand-held. In addition, the Beta 87A now includes the A25D break-resistant swivel adapter. Features Smooth frequency response with gradual presence rise Highly consistent supercardioid polar pattern provides superior gain-before-feedback. Electronic low-frequency roll-off compensates for proximity effect Wide dynamic range (117 dB) and low distortion characteristics Very low susceptibility to RFI and electromagnetic hum Advanced cartridge shock-mount system absorbs mechanical shocks and reduces handling noise Built-in pop filter reduces undesirable wind and breath sounds Reliability for years of trouble-free performance Specification Cartridge Type: Condenser (electret bias) Frequency Response: 50 to 20,000 Hz 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: -54 dBV/Pa (2mV) (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): 142 dB (0.25% THD, 1000 ohm load) Self-Noise (equivalent sound pressure level; measured with true rms voltmeter): 25 dB typical. A weighted 27 dB typical, weighted per DIN 45 405 Dynamic Range: 117 dB (maximum SPL to A-weighted noise level) Signal-to-Noise Ratio: 69 dB at 94 dB SPL (IEC 651)* Polarity: Positive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 Phantom Power Requirement: 11 to 52 Vdc, positive at both pins 2 and 3> Current Drain: 1.0 to 1.2 mA Connector: Three¨Cpin (XLR) professional audio Case: Aluminum construction with blue metallic finish, and hardened steel grille with nickel satin Dimensions: 192 x 51 mm (7-9/16 x 2 inches) Net Weight: 200 grams (7 oz.)
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