Specification Sheet

Product Specifications
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Beta
®
87A Supercardioid Condenser Vocal Microphone
Features
Specifications
Available Models
Beta 87A
Polar Pattern
Frequency Response
Accessories and Replacement Parts
RK312 Replacement grille R193 Replacement cartridge
A85WS Microphone windscreen A25D Microphone clip
Cartridge Type Electret Condenser
Frequency Response 20 to 20,000 Hz
Polar Pattern Supercardioid
Output Impedance 150 Ω
Sensitivity
(at 1kHz, open circuit voltage)
−52.5 dBV/Pa (2 mV)
1 Pascal=94 dB SPL
Maximum SPL
(1 kHz at 1% THD, 1kΩ load)
140.5 dB
Signal-to-Noise Ratio
(referenced at 94 dB SPL at 1 kHz)
70.5 dB
S/N ratio is difference between 94 dB SPL and equivalent SPL of self noise, A-weighted
Dynamic Range
(at 1 kHz, 1 kΩ load)
117 dB
Clipping Level
(1 kHz at 0.25% THD, 1kΩ load)
−6 dBV (0.5 V)
Self Noise
(typical, equivalent SPL, A-weighted)
23.5 dB typical
Polarity Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
Weight Net: 0.207 kg (0.475 lbs)
Connector Three-pin professional audio (XLR), male
Power Requirements 11 to 52 Vdc phantom (1.2 mA)
• Premier live performance microphone with Shure quality, ruggedness, and reliability
• Uniform supercardioid pick-up pattern for maximum gain before feedback and superior rejection of off-axis sound
• Smooth, wide frequency response with gradual presence rise and controlled proximity effect tailored for vocals
• Advanced cartridge shock mount system absorbs mechanical shock and minimizes handling noise
• Dent-resistant steel mesh grille and enamel coated metal alloy construction resist wear and abuse
• Effective built-in pop filter reduces undesirable wind and breath noise
• Very low susceptibility to RF and electromagnetic hum
The Shure Beta 87A is a precision-engineered supercardioid condenser vocal microphone with an exceptionally smooth frequency response. Built
to withstand extreme sound pressure levels, the Beta 87A is ideal for professional sound reinforcement and studio recording applications - and
constructed to withstand the rigors of touring.
Overview
Beta 87A Supercardioid Condenser Vocal Microphone