Electro-Voice RE90L Technical Specifications
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• Ultra-Miniature Size for Inconspicuous
Attachment
• Light Weight
• Omnidirectional Polar Pattern Provides
Clean Sound and Uniform Response
• Complete Assortment of Clips
General Description:
The Electro-Voice® RE90L is an omnidirectional back-
electret condenser lavalier microphone designed for the
Architectural Series Microphone line. The RE90L 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 RE90L provide
clean and accurate sonic quality and uniform output
regardless of the microphone’s position relative to the
sound source. The RE90L 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 RE90L is ideal for performance or house of worship
applications where the microphone must remain as
inconspicuous as possible to the viewing audience.
Technical Specifications:
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RE90L
Ultra-Miniature Condenser
Lavalier Microphone
12000 Portland Avenue South, Burnsville, MN 55337
Phone:952/884-4051, Fax:952/884-0043
www.electrovoice.com
© Telex Communications, Inc. 6/2006
Part Number 535039 Rev C
U.S.A. and Canada only. For customer orders, contact Customer Service at:
800/392-3497 Fax: 800/955-6831
Europe, Africa, and Middle East only. For customer orders, contact Customer Service at:
+ 49 9421-706 0 Fax: + 49 9421-706 265
Other International locations. For customer orders, contact Customer Service at:
+ 1 952 884-4051 Fax: + 1 952 736-4212
For warranty repair or service information, contact the Service Repair department at:
800/553-5992 or 402/467-5321
For technical assistance, contact Technical Support at: 800/392-3497 or 952/736-4656
Specifications subject to change without notice.
Polar Response:
Powering the RE90L
The RE90L is powered by an external 9- to 52- volt phantom
power supply. The electronics circuitry is wrapped with an insulated
copper foil for superior emi/rfi shielding. The module is enclosed
in a high-strength poly-carbonate resin housing to form a package
that is very light-weight and extremely durable for outstanding
reliability and long life.
Operation
To operate the RE90L use high-quality balanced cable with 3-pin
XLR-type connectors to connect the electronics housing to the
mixer input which is providing the phantom power. The connecting
cable used should be standard two-conductor shielded type; the
shield is used as ground return and must be properly connected
to avoid electrical noise.
Windscreen
Use the external windscreen to prevent wind and pop noise.
Architects’ and Engineer’s Specifications
The microphone shall be an ultra-miniature, back-electret
condenser with an omnidirectional polar pattern. The microphone
shall have a frequency response from 50 to 18,000 Hz and a
balanced output with a 150-Ohm nominal impedance. The open-
circuit output voltage shall be 12.6 mV/pascal. The microphone
capsule shall be black: the electronics housing made of black
polycarbonate resin. The microphone shall be permanently
connected to its electronics module with a 1.8 m ( 6 ft.) length of
rugged, three conductor, shielded, miniature audio cable. The
microphone shall be supplied with tie clasps and a storage pouch.
The Electro-Voice RE90L is specified.
Microphone Placement:
Looping the Cable to Eliminate Cable
Rustling Noise:
Microphone Placement and Cord
Looping
Typical microphone placement is shown in the illustration. For
best results, the RE90L should be positioned as close to the
mouth as possible. It is important to loop the cable as shown to
eliminate cable rustling noise.
