
Specifications
Dimensions
Dimensions
8.35x.93"
Electrical
Sensitivity at 1kHz Open Circuit Voltage
-45dBV/Pa (5.6mV)
Power Requirements
11 to 52 V DC phantom power (1.2mA)
Audio
Polar Pattern
Cardioid
Frequency Response
20 Hz - 20 kHz
Max SPL
136dB SPL (1kHz at 1% THD, 1kΩ load)
Signal to Noise Ratio
78dB (ref. 94dB SPL at 1kHz)
Connectivity
Connector
3-pin professional audio XLR male
Construction
Housing
steel construction, vinyl metallic paint finish, stainless steel screens
Included Items
SM81 Condenser Instrument Microphone
1x
Swivel Adapter
1x
Attenuator - Switch Lock
1x
Foam Windscreen
1x
Carrying Case
1x
Environmental
Operating Temperature
20°F to 120°F (-6.7°C to 49°C)
Shipping
Weight
0.5 lbs (0.23 kg)
General
Transducer Type
Condenser
Rated Output Impedance
150Ω (85Ω actual)
Clipping Level
-4dBV (0.63V) 1kHz at 0.25% THD, 1kΩ load
Hum Pickup
-3dB (typical, at 60Hz, equivalent SPL/mOe)
Polarity
positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
Attenuator Switch
0 or -10dB, lockable
Why Choose SoundPro?
Since 1972, SoundPro has been the trusted source for audio, video, and lighting gear. Whether you're starting your AVL journey or are a seasoned professional, we're here to help you every step of the way.