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Cardioid Condenser Instrument Microphone with Windscreen
Series: Shure
Model: SM81
- 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
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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.
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
- Polar/Pickup Pattern - Cardiod
- Microphone Type - Electret Condenser
- Polar/Pickup Pattern - Unidirectional
- Microphone Connectivity - Wired
- Spec Sheet available - Yes
- Impedance: 150 ohm
- Sensitivity: -45 dBV
- Total Harmonic Distortion: Less than 0.5% (131dB SPL at 250Hz into 800 ohm load)
- Width: 0.93 in
- Shipping Weight: 1 lbs
- Storage Humidity: 0 to 95% relative humidity at room temperature (72°F to 80°F, 22°C to 27°C)
- Power Supply Voltage: 11 to 52Vdc, positive, pins 2 and 3
- Regulatory Compliance: CE, EMC
- Polarity: Positive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3
- Case: Steel construction with vinyl metallic paint finish and stainless steel screens
- Furnished Accessories: Swivel Adapter A57F, 10dB Attenuator Lock 34A830, Carrying/Storage Case 65A1797, Windscreen 49A111
- Hum Pickup: –3dB equivalent SPL in a 1 mOe field (60Hz)
- Recommended Minimum Load Impedance: 800 ohms (may be used with loads as low as 150 ohms with reduced clipping level)
- Cartridge Capacitance: 54 pF
- Clipping Level at 1,000Hz: 800 ohm load: –4dBV (0.63 V); 150 ohm load: –15dBV (0.18 V)
- Self-Noise: 16dB typical, A-weighted; 19dB typical, weighted per DIN 45 405 (equivalent sound pressure levels; measured with true rms voltmeter)
- Output Configuration and Connector: Balanced, transformer-coupled output; male XLR connector
- Overvoltage and Reverse Polarity Protection: Maximum external voltage applied to pins 2 and 3 with respect to pin 1: + 52Vdc, Reverse polarity protection: 200mA maximum (diode-clamped)
- Low Frequency Response Switch Positions: Flat, -6dB/octave below 100Hz, -18dB/octave below 80Hz
- Attenuator Switch Positions (Lockable): 0 or -10dB
- Power Current Drain: 1.2 mA maximum
- Maximum SPL (Sound Pressure Level): 136 dB
- Product Weight: 0.51 lbs
- Wireless: No
- Minimum Frequency Response (Bandwidth): 20 Hz
- Minimum Frequency Response (Bandwidth): 0.02 kHz
- Maximum Frequency Response (Bandwidth): 20000 Hz
- Maximum Frequency Response (Bandwidth): 20 kHz
- Signal to Noise Ratio: 78 dB
- Operating Temperature (Maximum): 165.20 F
- Operating Temperature (Minimum): 84.20 F
User guide for Unidirectional Condenser Instrument Microphone
74 kb
- Data Sheet
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McCann Systems
290 Fernwood Avenue
Edison, NJ 08837
USA
1-888-414-3806
www.mccannsystems.com
Contact in regards to this product:
Shure Incorporated
Model: SM81
US B2B Inquiries Only
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