Shure SM81LC Cardioid Condenser Microphone FREE SHIPPING

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The Shure Model 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.

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.

Features 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

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

About Shure S.N. Shure began his company's relationship with the products of personal sound by launching a one-man operation in 1925 that sold radio parts kits. Since then, Shure microphones and audio electronics have been the tools of choice for politicians, musicians, corporations, churches, and broadcasters across the world. Anyone who considers sound to be an important part of his or her self-expression has probably used one of Shure's microphones, phonograph needles, or other professional audio products.

Technical Description

Type: Condenser (electret bias)

Frequency Response: 20 to 20,000 Hz

Polar Pattern: Cardioid (unidirectional) responseÖuniform with fre-quency, symmetrical about axis, 10 kHz

Output Impedance: Rated at 150 ohms (85 W actual)

Recommended minimum load impedance: 800 W (May be used with loads as low as 150 W with reduced clipping level)

Output Configuration and Connector: Balanced, transformer-coupled output; male XLR connector

Output Level (at 1,000 Hz): Open Circuit Voltage š45 dBV/Pascal (5.6 mV)(1 Pascal = 94 dB SPL) Open Circuit Voltage š65 BV/mbar (0.56 mV)(1 mbar = 74 dB SPL)

Clipping Level (at 1,000 Hz): 800 W Load š4 dBV (0.63 V) 150 W Load š15 dBV (0.18 V)

Total Harmonic Distortion: Less than 0.5% (131 dB SPL at 250 Hz into 800 W load)