Accurate MeasurementPreSonus PRM1: Precision Reference Microphone
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”, 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.
What makes the PRM1 different from most mics?Unlike mics you use for recording and live sound, the PRM1 has a narrow dynamic range, since it is intended to receive test frequencies, such as pink noise, at a fixed level. As a result, it is not recommended for recording or performance—but it’s the right mic for tuning a sound system to perform accurately in a venue. The PRM1 exhibits linear (“flat”) frequency response between 20 Hz and 20 kHz, meaning it captures all frequencies equally within that range. Since it neither boosts nor cuts frequencies, it doesn’t color the sound, making it ideal for measuring what a room or speaker is doing to a sound system’s outgoing signal.
Designed for use with Smaart and other audio analysis tools.While the PRM1 can be used for a variety of measurement applications, such as MLSSA™, Spectrafoo™, and TEF™, it is especially recommended for use with the Smaart® System Check wizards that are integrated into PreSonus® UC Surface control software for StudioLive® AI and StudioLive RM mixers. With this combination, you can have a complete, powerful, and affordable, audio-analysis and correction system.
FEATURES
¼-inch, pre-polarized electret-condenser capsule
Linear frequency response between 20 Hz and 20 kHz
Omnidirectional polar pattern
Low noise, low distortion
All-metal chassis
Comes with a clip, foam windscreen, and hard case
High-quality components and rugged construction
Suitable for system analysis and measurement
Especially recommended for use with PreSonus® StudioLive® mixers and VSL with Smaart® Measurement Technology
SPECS
General
Type: Black 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: 200Ω
Minimum Load Impedance: 1,000Ω
EIN (A-weighted): 26 dB
Max. SPL (1 kΩ load): 132 dB SPL (THD ≤ 1%, 1 kHz)
Dynamic Range (1 kΩ 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.

IBANEZ GRX70QA-TBB GIO TRANSPARENT BLUE SUNBURST
K&M CABLE CLIP 20MM
BEYERDYNAMIC DT770 EARPADS VELOUR
MEINL LC1134NTM CONGA
MEINL PADJ1LF 12 INCH DJEMBE PHARAOHS FIBER SKIN HEAD
STAGG M60 MICROPHONE CABLE, 1M
KLOTZ USB-AB3 USB CABLE 3 M
VOX AC15C1 TUBE GUITAR COMBO
YAMAHA TRBX504 BLACK
ROLAND KC-S KEYBOARD COVER SMALL
YAMAHA TRBX174 EXOTIC WOOD RTB
TAYLOR 214CE KOA DELUXE
PROSS KÕLAPLAAT BB2
BOSS GA-FC FOOT CONTROLLER
TAYLOR 414CE V-CLASS
DADDARIO PRO-ARTE J58 LM VIOLA STRING SET, LONG SCALE, MEDIUM TENSION
THOMASTIK-INFELD VIOLIN STRINGS INFELD HYBRID CORE BLUE MEDIUM
DADDARIO ACCESSORIES SATRIANI PICK SET BLACK 10-PACK
IBANEZ GSR200 BLACK
YAMAHA TRBX-204 BRIGHT RED METALLIC
HOHNER BLUES HARP E-MAJOR
KLOTZ TM.STEVENS FUNKMASTER 6M
AKG WMS40 MINI INSTRUMENT SET ISM1
VOX AP3-AC AMPLUG3 AC30 HEADPHONE AMPLIFIER
MXR M237 DC BRICK
TAYLOR 312CE V-CLASS GRAND CONCERT
IBANEZ GRX70QA-TRB GIO TRANSPARENT RED SUNBURST
IBANEZ GSA60BKN BLACK NIGHT
STAGG US-RED SOPRANO UKULELE
GIBRALTAR SC-19B CYMBAL SLEEVE
NINO NINO5R HAND DRUM
JBL SRX815P 15" TWO-WAY BASS REFLEX SELF-POWERED SYSTEM
PRS SE-SANTANA YELLOW
YAMAHA V5 SC VIOLIN 4/4
YAMAHA TRBX305 WHITE
DADDARIO ACCESSORIES CHROME SLIDE MEDIUM
ROLAND BK3 BLACK BACKING KEYBOARD
YAMAHA PA-130 POWER SUPPLY
GRETSCH G9100 SOPRANO UKULELE
FENDER STEEL SLIDE STD MEDIUM
BOSS ES5 EFFECTS SWITCHING SYSTEM
YAMAHA APX 700II SB
FENDER FESTIVAL STRAP BLUE
DADDARIO RESERVE SOPRAN SAX 3.0 10-PACK
KLOTZ TITANIUM PSP 3M SUPREME GUITAR CABLE WITH SILENTPLUG
TAYLOR 914CE V-CLASS
PRESONUS AIR18S ACTIVE SUBWOOFER
REMO 14″ EMPEROR CLEAR
YAMAHA APX 700II BL
IBANEZ GRG170DXBKN
REMO MF-1016-00 16 CONTROL RING
KLOTZ AT-CCA0200 CINCH CABLE 2 M
YAMAHA TRBX-204II ELECTRIC BASS GALAXY BLACK
YAMAHA B1 PWH UPRIGHT PIANO POLISHED WHITE 109CM
KLOTZ AT-CJ0200 UNBALANCED PRO TWIN CABLE WITH RCA AND JACK PLUGS 2M
REMO 8EBONY PINSTRIPE
HOHNER MARINE BAND 1896 E-MAJOR
GRAPHTECH TUSQ PQ-1204-00 F- STYLE P-STYLE BASS NUT CURVED BOTTOM SLOTTED 4-STRING
GRETSCH G9110 CONCERT UKULELE
DADDARIO ACCESSORIES 50JS02 JOE SATRIANI STRAP UP IN FLAMES
AKG PERCEPTION 820 TUBE
ZOOM WSU1 UNIVERSAL WINDSHIELD
SEYMOUR DUNCAN MARK HOLCOMB SIGNATURE OMEGA BRIDGE HUMBUCKER 6-STRING BLACK
DADDARIO KAPLAN AMO KA310 4/4M VIOLIN SET MEDIUM
AKG WMS40 MINI VOCAL SET ISM2
YAMAHA U1 DISKLAVIER PWH
SHURE SE SERIES HEADPHONE CABLE CLEAR
YAMAHA YCB 621
SENNHEISER HD-25 COILED CABLE
STAGG FPSM FINGERPICKSET MEDIUM
EPIPHONE LES PAUL CUSTOM EBONY
IBANEZ GRG 121DX WALNUT FLAT
KLOTZ AD10 ACTIVE DIBOX
RODE M5 MATCHED PAIR 