Available Options

SM81-LC With windscreen, no cable. Phantom power required.

The Shure SM81 is a high-quality, unidirectional condenser microphone designed for studio recording, broadcasting, and sound reinforcement. Its wide frequency response, low noise characteristics, and low RF susceptibility have made it a standard for applications involving acoustic instruments, especially guitar, piano, and cymbals.

Application

Acoustic Bass

Acoustic Guitar

Cymbals

Live Choirs

Orchestra/Strings

Percussion

Piano/Organ

Studio Instrument

Woodwinds

Microphone Type

Condenser:

Lightweight, sensitive diaphragm. Precisely and smoothly captures sound nuances. Powered by battery or phantom power supply.

Polar Pattern

Cardioid:

Picks up the most sound in front of the microphone and some from the sides. Less susceptible to feedback in high volume environments.

Frequency Response

Flat:

Wide, uniform response. Consistent sensitivity through frequency range.

Form Factor

Mountable

Model Line

SM

Downloads
SM Microphone Product Brochure (PDF)
SM81 Specification Sheet (PDF)
SM81 User Guide (PDF)
Related Links
FAQ's for SM81
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Features

The SM81 is ruggedly constructed. It operates on phantom power and performs over a wide range of temperatures and humidity conditions. It is furnished with a swivel adapter, attenuator-switch lock, foam windscreen, and case for carrying and storage. Other accessories are available. 

  • 20 Hz to 20 kHz frequency response
  • Flat response curve for accurate reproduction of sound sources
  • Low noise and high output clipping level
  • Low distortion over a wide range of load impedances
  • Cardioid polar pattern, uniform with frequency and symmetric about axis, providing maximum rejection and minimum coloration of off-axis sounds
  • Low RF susceptibility
  • Selectable low-frequency response: flat, 6 or 18 dB/octave rolloff
  • 0 dB/10 dB lockable attenuator switch
  • Phantom powering (DIN 45 596 voltages of 12 to 48 Vdc)
  • Rugged steel construction for durability
  • Field-usable over wide range of temperature and humidity conditions

 

Specifications
Type
Condenser (electret bias)
Frequency Response
20 to 20,000 Hz
Polar Pattern
Cardioid (unidirectional) response-uniform with frequency, symmetrical about axis
Accessories
Name Availability
A81WS

A81WS

Reduces unwanted breath and wind noise. For use with the Shure end address microphones such as the Shure SM81, and SM57. Available in gray.

A57F

A57F

Works with Beta 181, KSM137, KSM141, SM63, SM63L, SM63LB, SM81, VP64A, VP64AL, MX412, MX418, MX412S, MX418S, MX412SE, and the MX418SE microphones and standard microphone stands.

R104

R104

Cartridge and Grille Assembly for SM81 Microphone