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Product Specifications
Beta® 87A Supercardioid Condenser Vocal Microphone
Overview
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.
Features
• 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
Available Models
Beta 87A Supercardioid Condenser Vocal Microphone
Specifications
Cartridge Type Electret Condenser
Frequency Response 20 to 20,000 Hz
Polar Pattern Supercardioid
Output Impedance 150 Ω
Sensitivity
(at 1kHz, open circuit voltage)
Maximum SPL
(1 kHz at 1% THD, 1kΩ load)
Signal-to-Noise Ratio
(referenced at 94 dB SPL at 1 kHz)
Dynamic Range
(at 1 kHz, 1 kΩ load)
Clipping Level
(1 kHz at 0.25% THD, 1kΩ load)
Self Noise
(typical, equivalent SPL, A-weighted)
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)
−52.5 dBV/Pa (2 mV)
1 Pascal=94 dB SPL
140.5 dB
70.5 dB
S/N ratio is difference between 94 dB SPL and equivalent SPL of self noise, A-weighted
117 dB
−6 dBV (0.5 V)
23.5 dB typical
Accessories and Replacement Parts
RK312 Replacement grille R193 Replacement cartridge
A85WS Microphone windscreen A25D Microphone clip
Polar Pattern
250 Hz
500 Hz
1000 Hz
2500 Hz
6300 Hz
10000 Hz
Frequency Response
+20
+10
0
dB
–10
–20
20 50 100 1000 10000 20000
Hz
Beta 87A
98765432 98765432
www.shure.com ©2015 Shure Incorporated