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Shure SM87A Vocal Supercardioid Microphone (Discontinued)

Part # SM87A
Model # SM87A

The Shure SM87A microphone is a professional-quality, handheld condenser microphone for use in sound reinforcement, broadcasting, and studio recording installations.

Description

Details

The Shure SM87A microphone is a professional-quality, handheld condenser microphone for use in sound reinforcement, broadcasting and studio recording installations. Its supercardioid polar pattern provides greater rejection of unwanted sound sources, making it ideal for miking individual instruments in a multi-microphone setting or for miking single sources in a reverberant or noisy environment. An integral three-stage wind and pop filter protects against wind and breath noise. Its built-in shock mount reduces stand and handling noise.

Features

Features

  • Highly directional supercardioid pickup pattern
  • Controlled low-frequency roll-off
  • Very low RF and magnetic hum susceptibility
  • Minimally affected by varying load impedance
  • Built-in wind and pop filter
  • Transducer element shock mounted
  • Rugged construction for outstanding reliability
  • Field-usable over a wide range of temperature and humidity conditions
  • Accepts a wide variety of phantom power sources, including DIN 45 596 voltages of 11 and 52 Vdc
Specification
Cartridge TypeCondenser (electret bias)
Frequency Response50 to 20,000 Hz
Polar PatternRated 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 (2.4 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)24 dB typical, A-weighted 26 dB typical, weighted per DIN 45 405
Dynamic Range116.5 dB (maximum SPL to A-weighted noise level)
Signal-to-Noise Ratio70 dB at 94 dB SPL
PolarityPositive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3
PowerSpecifications
Phantom Supply Requirement11 to 52 Vdc, positive at both pins 2 and 3
Current Drain1.0 to 1.2 mA
ConnectorThree-pin (XLR) professional audio
CaseAluminum construction with steel grille and satin black finish
Net Weight0.44 lbs (200 Gram)
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