RE90L
Ultra-Miniature Condenser
Lavalier Microphone
• Ultra-Miniature Size for Inconspicuous Attachment
• Light Weight
• Omnidirectional Polar Pattern Provides Clean Sound, and Uniform
response
• Complete Assortment of Clips
Description and Applications
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.
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 polycarbonate 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.
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.
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. The product shall have a balanced output with a 100-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.
Limited Warranty
Electro-V oice products are guaranteed against
malfunction due to defects in materials or
workmanship for a specified period, as noted
in the individual product-line statement(s)
below , or in the individual product data sheet
or owner’s manual, beginning with the date
RE90L Ultra-Miniature Condenser Lavalier Microphone
°
0
°
330
°
30
°
60
°
90
°
120
°
240
°
150
°
210
5,000 Hz
°
180
°
300
°
270
of original purchase. If such malfunction occurs during the specified period, the product
will be repaired or replaced (at our option)
without charge. The product will be returned
to the customer prepaid. Exclusions and
Limitations: The Limited W arranty does not
apply to: (a) exterior finish or appearance; (b)
certain specific items described in the individual product-line statement(s) below, or in
the individual product data sheet or owner’s
manual; (c) malfunction resulting from use
or operation of the product other than as specified in the product data sheet or owner’s
manual; (d) malfunction resulting from misuse or abuse of the product; or (e) malfunction occurring at any time after repairs have
been made to the product by anyone other than
Electro-Voice Service or any of its authorized
service representatives. Obtaining Warranty
Service: To obtain warranty service, a customer must deliver the product, prepaid, to
Electro-Voice Service or any of its authorized
service representatives together with proof of
purchase of the product in the form of a bill
of sale or receipted invoice. A list of authorized service representatives is available from
Electro-Voice Service at 600 Cecil Street,
Buchanan, MI 49107 (800/234-6831 or F AX
616/695-4743). Incidental and Consequen-
tial Damages Excluded: Product repair or
replacement and return to the customer are
the only remedies provided to the customer.
Electro-Voice shall not be liable for any incidental or consequential damages including,
without limitation, injury to persons or property or loss of use. Some states do not allow
the exclusion or limitation of incidental or
consequential damages so the above limitation or exclusion may not apply to you. Other
Rights: This warranty gives you specific legal rights, and you may also have other rights
which vary from state to state.
Electro-V oice Wired Micr ophones are guaranteed against malfunction from any cause
for two (2) years from the date of original
purchase. In addition, the Limited Warranty
for the acoustic system contained in these microphones shall apply for the life of the prod-
uct, defined as a period of ten (10) years from
the date that the manufacture of the specific
microphone has been discontinued. Any and
all active electronics incorporated in these
microphones are guaranteed against malfunction due to defects in materials or workmanship for a period of three (3) years from the
date of original purchase. The Limited Warranty does not extend to cables, cable connectors, or switches. Additional details are
included in the Uniform Limited Warranty
statement.
For warranty repair or service information,
contact the service repair department at:
616/695-6831 or 800/685-2606.
For technical assistance, contact Technical
Support at 800/234-6831 or 616/695-6831,
M-F , 8:00 a.m. to 5:00 p.m. Eastern Standard
Time.
Specifications subject to change without notice.
RE90L Ultra-Miniature Condenser Lavalier Microphone
Figure 1—Polars
°
300
°
270
°
240
210
500 Hz 1,000 Hz
°
°
330
°
0
°
180
°
30
°
60
°
90
°
120
°
150
2
RE90L Ultra-Miniature Condenser Lavalier Microphone
Figure 2—Frequency Response
Figure 3—Looping the Cable to
Eliminate Cable Rustling Noise
10 dB
20
30 100
50
200
FREQUENCY IN HERTZ
1,000 2,000 5,000
500
RE90L Ultra-Miniature Condenser Lavalier Microphone
10,000 20,000
Figure 4—Microphone Placement
3
10-in
RE90L Ultra-Miniature Condenser Lavalier Microphone
Specifications
Generating Element:
Condenser, back electret
Frequency Response:
50 to 18,000 Hz
Polar Pattern:
Omnidirectional
Sensitivity,
Open-Circuit Voltage:
12.6 mV/pascal
Power Level:
-34 dB at 1,000 Hz
(0 dB = 1 mW/pascal)
Maximum SPL at 1% THD:
130 dB SPL
Equivalent Noise:
Less than 29 dB SPL, typical, A
weighted
(0 dB = 20 micropascals)
Dynamic Range:
Greater than 100 dB
Output Impedance at 1,000 Hz:
100 Ohms typical
Power Requirements:
9 to 52 V dc phantom supply
Current Consumption:
1.0 mA typical
Polarity:
A positive pressure on the diaphragm
produces a positive voltage on output
pin 2 (+)
Finish:
Nonreflecting black
Dimensions:
Electronics Module,
Length:
93 mm (3.65 in.)
Body Diameter:
19 mm (0.75 in.)
Capsule Diameter:
4.9 mm (0.19 in.)
Cable Length:
1.8 m (6 ft), permanently attached
Net Weight:
33.5 g (1.2 oz)
Shipping Weight:
235 g (8.3 oz)
Furnished Accessories:
External windscreen
Replacement Part Number: 73974
Universal tie clip
Replacement Part Number: 73972
Tie tac
Replacement Part Number: 73973
Zippered gig bag
Replacement Part Number: 73740
Accessories:
Dual microphone clip
Order Part Number: 73975
RE90L Ultra-Miniature Condenser Lavalier Microphone
600 Cecil Street, Buchanan, MI 49107
616/695-6831, 616/695-1304 Fax
MICROPHONES—Condensers Part Number 535039 — 9828
4
©Telex Communications, Inc., 1998 • Litho in U.S.A.
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