The 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.

SPECIFICATIONS: * 20 Hz to 20kHz frequency response * Flat response curve for accurate reproduction of sound sources * Low noise and high output clipping level * Low distortion over a wide rane of load impedances * Cardioid polar patter, 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 * Rugged steel construction for durability * Field-usable over wide range of temperature and humidity conditions