Electro Voice Microphone RE90TX User Manual

RE90TX  
Ultra-Miniature Condenser  
Lavalier Microphone  
with TA4F Connector  
Key Features:  
Ultra-Miniature Size for Inconspicuous  
Attachment  
Lightweight  
Omnidirectional Polar Pattern Provides Clean  
Sound and Uniform Response  
Complete Assortment of Clips  
Terminated with Female TA4 Connector  
General Description:  
Technical Specifications:  
Generating Element: Condenser, back electret  
Frequency Response: 20 to 20,000 Hz  
Polar Pattern: Omnidirectional  
The Electro-Voice® RE90TX is an omnidirectional back-  
electret condenser lavalier microphone designed for the  
Architectural Series Microphone line. The RE90TX is intended  
for sound reinforcement applications such as houses of  
worship, schools, or other venues where full-range, natural,  
well-balanced sound is required. The omnidirectional polar  
characteristics of the RE90TX provide clean and accurate  
sonic quality and uniform output regardless of the  
microphone’s position relative to the sound source. The  
RE90TX is designed to attach to the talker’s clothing using  
the supplied clips. The electronics housing features a side  
clip to facilitate attachment to a belt or pocket. In addition, the  
extremely compact size of the RE90TX is ideal for  
performance or house of worship applications where the  
microphone must remain as inconspicuous as possible to  
the viewing audience. The RE90TX comes supplied with 4  
feet of cable, terminated with a 4-pin TA4F connector, and a  
tie clasp with non-reflecting black finish.  
Sensitivity, Open-Circuit 5 mV/pascal  
Voltage:  
Maximum SPL at 1% THD: 140 dB SPL  
Equivalent Noise: 29 dB SPL, typical, A weighted (0 dB =  
20 micropascals)  
Dynamic Range: >110 dB  
Output Impedance at 5000 Ohms  
1 kHz:  
Power Requirements: 5Vdc  
Current Consumption: 1.0 mA typical  
Polarity: A positive pressure on the diaphragm  
produces a positive voltage on output  
pin 2 (+)  
Finish: Nonreflecting black  
Length: 8.3 mm (0.325 in.)  
Body Diameter: 5 mm (0.195 in.)  
Cable Length: 1.8 m (6 ft.), w/TA4F Connector  
Net Weight: 33.5 g (1.2 oz.)  
Shipping Weight: 235 g (8.3 oz.)  
Furnished Accessories: External Windscreen  
Universal Tie Clip  
Tie Tac  
Zippered Gig Bag  
Optional Accessories: Dual Microphone Clip  
 

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