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Shure SM87A Vocal Microphone

The Shure SM87A is a professional-quality, condenser microphone that features a smooth, tailored frequency response for use in sound reinforcement, broadcasting, and studio recording installations. It's supercardioid polar pattern provides increased rejection of unwanted sound sources, making it ideal for miking individual instruments in a multi-microphone setting or for miking single sources in reverberant or noisy environments. The SM87A has a built-in three-stage wind and pop filter that protects against wind and breath noise while its built-in shock mount reduces stand and handling noise.

Shure SM microphones have come to define the sound of live performance. Sound engineers have relied on SM products on stage and in concert halls for years. Remarkably reliable and consistent they are the standard house sound equipment for venues worldwide.

Applications: Lead Vocals, Backup Vocals.


  • Frequency Response 50 Hz to 18 KHz
  • Highly directional supercardioid pickup pattern.
  • Controlled low-frequency roll-off.
  • Very low RF and magnetic hum susceptibility.
  • Minimally affected by varying load impedance.
  • Condenser cartridge for studio quality sound.
  • Field-usable over a wide range of temperature and humidity conditions.
  • Shock mounted transducer element to minimise handling noise.
  • Effective, built-in three stage wind and pop filter.
  • Legendary Shure quality and ruggedness.

Response Charts

Shure SM87A Frequency and Polar Response Charts

Technical Specifications

lnsert TypeCondenser (electret bias)
Polar Pattern Supercardioid (Unidirectional)
Frequency Response 50 Hz to 20,000 Hz
Output Impedance150 Ohms at 1 KHz
Output Level-52.5 dBV/Pa (2.4 mV) at 1 KHz, 1 Pa = 94 db SPL
Output Clipping Level -6 dBV (0.5 V) (1000 Ohm Load)  
Maximum SPL 140.5 dB (0.25% THD, 1000 ohm load)
Signal to Noise Ratio70 dB at 94 dB SPL (IEC 651)
Self Noise24 dB typical, A-weighted
Power Phantom 11 to 52 Vdc
Current Drain1.0 to 1.2 mA
Weight250 g
ConstructionSteel and brass construction with black painted finish.

Ordering Information

DescriptionOrder Code
Shure SM87A Vocal MicrophoneSHU-SM87A
The information presented on this page is provided by courtesy of Shure Inc.
Revised: 23-Dec-2010 Copyright (C) 2010 Adena Limited