PRM1

A professional measurement tool.

The PRM1 Precision Reference Microphone is a special type of microphone that provides an accurate reproduction of a room's sound characteristics for use with audio-analysis tools. It employs a ¼-inch, pre-polarized, electret-condenser capsule with an omnidirectional polar pattern, which allows the microphone to measure reflections, as well as direct signals up to 132 dB SPL. The PRM1 has an all-metal chassis and comes with a clip, foam windscreen, and hard case.

Technical Specifications
General
Type Back-electret condenser
Element Pressure, FET preamplifier
Polar Pattern Omnidirectional
Performance
Frequency Response 20 Hz to 20 kHz
Sensitivity (@ 1 kHz open-circuit voltage) -37 dB/Pa (14 mV/Pa) 1 Pa=94 dB SPL
Rated Impedance 200?
Minimum Load Impedance 1,000?
EIN (A-weighted) 26 dB
Max. SPL (1 k? load) 132 dB SPL (THD ? 1%, 1 kHz)
Dynamic Range (1 k? load) 106 dB
S/N Ratio 70 dB
Connections
Polarity
Pin 2 output positive voltage (relative to Pin 3) when diaphragm receives positive pressure (moves inward)

Connector 3-pin XLR Male
Power
Phantom Power 9-52V
Current Consumption 2 mA
Physical
Length 7.56” (192 mm)
Width 0.83” (21 mm)
Weight 5.3 oz (150g)
Finish Metal, matte black
Environmental Conditions 10-50? C, humidity 0-95%
As a commitment to constant improvement, PreSonus® Audio Electronics, Inc., reserves the right to change any specification stated herein, at any time, without notification.