The Shure SM81 is a high-quality small diaphragm, cardioid condenser microphone. Its flat, neutral frequency response, make it particularly well-suited for use on acoustic guitar, piano, cymbals and choirs.
Key Features
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 effectively isolates source signal
Low RF susceptibility
Selectable low-frequency response: flat, 6 or 18dB/oct roll-off
0dB/10dB lockable attenuator switch
Phantom powering (DIN 45 596 voltages of 12 to 48 Vdc)
Rugged steel construction for durability
Field-useable over wide range of temperature and humidity conditions
Transducer
(Electret Bias) Condenser
Polar Pattern
Cardioid
Frequency Response
20 Hz - 20 kHz
Dynamic Range (Typical)
120 dB
Signal-to-Noise Ratio
78 dB, (@ 94 dB SPL, IEC 651)
Maximum Input Sound Level
136 dB, (@ 250 Hz 0.5% THD) 146 dB, (with Pad)
Power Requirements
Phantom 11 - 52v DC
Output Impedance
150 Ohms (85 Ohms Actual)
Output Connectors
XLR-3M Type
Pad
-10 dB Attenuation
Low Frequency Roll-Off
-6 dB/Octave @ 100 Hz -18 dB/Octave @ 80 Hz
Applications
Sound Reinforcement, Broadcast and Studio Recording.
Dimensions
212 x 23.5 mm LxDiameter
Weight
8 oz. (230 g)
(A57F) Swivel Adapter
(34A830) 10 dB Attenuator Lock
(65A1797) Carrying/Storage Case
(49A111) Foam Windscreen
2 Year Warranty
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