Shure PG81 Product Specifications

Product specifications
PG81 Cardioid Condenser Instrument Microphone
Overview
PG81 Cardioid Condenser Instrument Microphone is a professional quality flat-response microphone designed to be used in sensitive acoustic
instrument applications. With rugged durability and excellent sound, this versatile microphone comes with an on/off switch, swivel adapter, carrying
pouch and choice of with XLR cable, or without. Phantom power or included AA battery required.
Features
• Flat frequency response is wide and uniform. Consistent sensitivity through frequency range.
• Cardioid polar pattern picks up the most sound from in front of the microphone and some sound from the sides. Less susceptible to feedback in
high volume settings.
• Condenser cartridge has a lightweight, sensitive diaphragm. Precisely and smoothly captures sound nuances.
• Powered by AA battery or phantom power supply.
• Internal shock mount for reduced handling noise.
• Durable metal construction.
• On/off switch for onstage control.
Available Models
PG81-XLR Includes a 15 ft (4.57m) XLR to XLR Cable, Microphone Clip, 5/8" to 3/8" Thread Adapter, and a Storage Bag.
PG81-LC Includes a Microphone Clip, 5/8" to 3/8" Thread Adapter, and a Storage Bag.

Specifications

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)
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 111 dB (phantom); 107 dB (battery)
load, to A-weighted noise level)
Signal-to-Noise Ratio 68 dB (IEC 651)* at 94 dB SPL
Power Phantom Power
Supply Voltage: 11 to 52 Vdc
Current Drain: 2.0 mA max at 52 Vdc
Maximum Exteral 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 hour
Switch Built-in On/Off switch
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%.
Electromagnetic Hum Sensitivity -7 dB equivalent SPL in a 1 millioersted field (60 Hz)
Weight Net: 250 g (8.8 oz) less battery
Packaged: 880 g (1 lb 15 oz)
1000 Hz
Polar Pattern
Measured at 1000 Hz
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Frequency Response
PG81