Shure Incorporated PG Series Instrument Condenser Microphone PG81-XLR

A sensitive, flat response condenser microphone ideal for acoustic instruments. Can be powered by AA battery or phantom power.
Microphone Type
Condenser (electret bias)
Polar Pattern
Cardioid (unidirectional), symmetrical about axis
Frequency Response
40 to 18,000 Hz
Polarity
Positive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of microphone output connector
Output Impedance (at 1000 Hz)
600 ohms
Sensitivity (at 1000 Hz)
-48 dBV/Pa, (4.0 mV), 1 Pascal = 94 dB SPL
Electromagnetic Hum Sensitivity
-7 dB equivalent SPL in a 1 millioersted field (60 Hz)
Switch
Built-in On/Off switch
Recommended Input Load Impedance
800 ohms minimum
Output Clipping Level (1 kHz, 1 % THD)
2000 ohm load
-13 dBV (0.22 V) (phantom)
-17 dBV (0.14 V) (battery)
Maximum SPL
2000 ohm load: 131 dB (phantom), 127 dB (battery)
Self-Noise (Equivalent SPL)
20 dB typical, A-weighted
Dynamic Range (maximum SPL, 2k ohm load, to A-weighted noise level)
111 dB (phantom); 107 dB (battery)
Signal-to-Noise Ratio
68 dB (IEC 651)* at 94 dB SPL
Phantom Power
Supply Voltage: 11 to 52 Vdc
Current Drain: 2.0 mA max at 52 Vdc
Maximum External Voltage Applied to Pins 2 and 3 with respect to Pin 1: +52 Vdc
Reverse polarity protected to: 100 Vdc
Battery Power
Recommended: 1.5 V alkaline AA size (NEDA 15A)
Life: up to 10,000 hours
Connector
Three pin professional audio connector (male XLR type)
Case
Steel and brass construction with black painted finish
Environmental Conditions
This microphone operates over a temperature range of -29 to 57 degrees Celsius (-20 to 135 degrees Fahrenheit), and at a relative humidity of 0 to 95%.
Weight
Net: 250 g (8.8 oz) less battery
Packaged: 880 g (1 lb 15 oz)