Electro Voice Microphone PL37 User Manual

PL37  
Cardioid Condenser  
Overhead Microphone  
Key Features:  
Voiced for overhead cymbals, high-hat and percussion  
Crisp frequency response  
Fast transient response  
Tight cardioid polar pattern for isolation  
Superb rejection of off-axis information  
High-output self-biased condenser element  
General Description:  
Thank you for purchasing the Electro-Voice® PL37. This product is  
a professional-grade tight cardioid condenser microphone designed  
to deliver all of the crisp detail of cymbals, high-hats and percussion  
instruments in any size sound reinforcement system or recording  
studio. With its frequency response designed for overhead drum set  
and percussion miking, the PL37 delivers all of the “dialed-in” tone  
and percussive transient response detail professional drummers and  
sound system engineers require. The PL37’s tight cardioid polar pat-  
tern is designed to minimize off-axis information from nearby stage  
instruments entering the capsule, and allows for a clean drum set  
sound and higher gain before feedback. Although designed to be an  
overhead drum set and percussion microphone, the PL37 can also  
be used as an acoustic instrument microphone in applications where  
a condenser element capsule would be desired.  
Technical Specifications:  
Element Type: Self-Biased Condenser  
Frequency Response: 50 Hz - 16,000 Hz  
Polar Pattern: Cardioid  
Application Notes:  
1) This product requires external power to function (see technical  
specifications panel for voltage spec), which is commonly supplied  
via the Phantom Power function on your sound system mixer or  
input module.  
Sensitivity, Open Circuit 7.0 mV/Pa (-43 dBV)  
Voltage, 1 kHz:  
Polarity: Positive pressure on diaphragm  
produces positive voltage on pin 2  
relative to pin 3  
2) As with most directional microphones, the low frequency re-  
sponse of the PL37 microphone varies with the distance from the  
sound source. Known as “proximity effect”, the bass response of the  
microphone increases as the working distance to the microphone is  
reduced. This “bass boost” is only audible when working at distances  
closer than 6 inches. Therefore, working close to the microphone will  
produce a more robust sound. Using this microphone at distances  
greater than 6 inches provides minimal coloration from proximity  
effect.  
Rated Impedance: 200 ohms  
Max SPL (1% THD @1 kHz): 132 dB SPL  
Self Noise: 25 dB SPL, A-weighted  
Dynamic Range: 107 dB  
Signal-to-Noise Ratio: 69 dB (@94 dB SPL)  
Power Requirements: Phantom Supply Requirement:  
11 to 52 VDC, 4 mA  
Close-up positioning of the microphone will also reduce the poten-  
tial for feedback from the sound reinforcement system. Then, the  
bass boost provides an increase in overall microphone output level.  
The mixer gain may be proportionately reduced, resulting in a reduc-  
tion of the system’s sensitivity to feedback caused by sound entering  
the microphone from the loudspeakers.  
Microphone Connector: 3-pin, XLR-type  
Finish: Textured black satin body with  
MemraflexTM grille  
Dimensions: Length = 6.40” (162.5 mm)  
Width = 1.14” (29.0 mm)  
Shank = 0.83” (21.1 mm)  
Warranty:  
Accessories Included: Stand adapter with Euro-thread  
insert, Soft zippered gig bag  
This Electro-Voice® PL37 product is guaranteed against malfunction  
due to defects in materials or workmanship for a period of three (3)  
years from the date of original purchase. Please refer to the Limited  
Warranty card included with your product for further warranty infor-  
mation.  
Net Weight: 6.3 oz (176 g)  
Shipping Weight: 17.1 oz (485 g)  
 

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