Electro-Voice US-690 User Manual

US690

12-Inch Gooseneck,
Dynamic Microphone

Description

The Electro-Voice US690, US690F and
US690F-S are cardioid, shock-mounted,
gooseneck-supported, dynamic microphones.
These microphones utilize a revolutionary
neodymium alloy to form the exclusive

N/DYM
potential of conventional microphone mag­nets. With a computer-optimized design, the
N/DYM magnet structure is maximized in
the US690 series to provide up to 6 dB more
output sensitivity over conventional designs,
while the more uniform magnetic field low­ers distortion during peak sound pressure
levels.

The exceptional sensitivity of the US690 se­ries combined with the inherently low noise
of a dynamic transducer ensures a superior
signal-to-noise ratio. To further reduce noise,
a highly effective humbucking coil is used
to cancel hum from lighting and other
sources.

A unique diaphragm design provides 50 per­cent more surface area than conventional de­signs and is reinforced to prevent “breakup.”
The result is an extended high-frequency re­sponse with an open transparent sound qual­ity that provides greater intelligibility for

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magnet with four times the power

today’s most demanding sound system.
The uniform cardioid polar pattern of the

US690 series ensures superior gain-before­feedback in live applications at all frequen­cies—compared with other directional mi­crophones with widely varying polar char­acteristics.

The US690 series are enclosed in a rugged
Memraflex
filter to virtually eliminate explosive breath
sounds and wind noise. Coupled with a
unique shock mount system which totally
surrounds the microphone element, further
reduces all forms of handling or mechani­cally induced noise, and makes the US690
series the microphones of choice when rug­gedness and performance are essential.

Application

The model US690 gooseneck microphone
was designed for use on lecterns as a high
quality mixing console talkback microphone,
or applications that require a plug-in goose­neck microphone.

The model US690F gooseneck microphone
was designed to panel-mount in fixed instal­lations where a high-performance, rugged,
non-removable microphone is required. The
microphone has a permanently attached, two-

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grille with AcoustifoamTM pop

conductor shielded cable, six feet long, to
permit ease of installation.

The model US690F-S gooseneck micro­phone was designed to be surface-mounted
in fixed installations where a high-perfor­mance, rugged, field-installable microphone
is required. The microphone has a perma­nently attached, two-conductor, shielded
cable, six feet long, to permit ease of instal­lation.

Operation

The frequency response of the US690 series
has been tailored for optimum performance
where smooth, extended, highly intelligible
sound character is required. The microphone
output is balanced and low impedance.

The dynamic element of the US690 series
will provide reliable operation in humidity
and temperature extremes—adverse condi­tions that would render condenser micro­phones useless—for years of trouble-free op­eration.

Mounting Instructions for US690F

Select microphone location, taking care that
there are no obstructions under panel which
could be damaged; panel thickness may not

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exceed

/2 inch. Drill a 3/4-in. hole at micro-

US690 12-inch Gooseneck, Dynamic Microphone

phone location, drop cable through the hole
and position the microphone assembly.

Secure assembly with included panel washer
and retaining nut (see Figure 6). Attach con­nector. For correct wire placement for three­pin balanced or

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/4-in. phone plug balanced
or unbalanced termination, see the wiring
diagrams in Figure 5.

Mounting Instructions for US690F-S

Select microphone location, taking care that
there are no obstructions under the surface if
the cable is to be routed through the surface.
The flange is slotted to provide the option
for cable exit above the mounting surface.
Attach the template provided to the surface
at the mounting locations. Pilot drill the three
holes for the flange. Now optionally drill the
hole through in the center if the cable is to
pass through the surface. Drop cable through
the hole and position the microphone assem­bly. Secure assembly with user-supplied
screws . Attach connector. For correct wire

US690 12-inch Gooseneck, Dynamic Microphone

placement for three-pin balanced or

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/4-in.
phone plug balanced or unbalanced termi­nation, see the wiring diagrams in Figure 5.

Architects’ And Engineers’
Specifications

The gooseneck microphone shall be a car­dioid, dynamic type with uniform frequency
response from 60 Hz to 20,000 Hz. The dia­phragm shall be of nonmetallic Acoustalloy
The microphone output shall be balanced
with an impedance of 150 ohms. Output level
shall be –50 dB with 0 dB equalling 1mW/
pascal. Dimensions shall be 52 mm (2.05
in.) in diameter and length of 421 mm (16.58
in.) for the US690, 418.6 mm (16.48 in.) for
the US690F , and 402 mm (15.84 in.) for the
US690F-S. The microphone shall include a
12-inch metal gooseneck and the following
complementary parts and accessories: pro­fessional A3M-style terminating connector
for the US690;

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/4-inch threaded panel mount
and 1.8 m (6 ft) two-conductor shielded
cable for the US690F; and metal mounting
flange and 1.8 m (6 ft) two-conductor
shielded cable for the US690F-S. The mi­crophone shall be of metal construction with
plastic engraved grille screen retainer. The
microphone transducer shall be shock-

mounted within the grille-screen structure.
The Electro-Voice models US690, US690F

and US690F-S are specified.

Limited Warranty

Electro-Voice 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 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. Ex-
clusions 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 Electro­Voice Service or any of its authorized ser­vice representatives. Obtaining Warranty
Service: To obtain warranty service, a cus-

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tomer must deliver the product, prepaid, to

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Electro-V oice 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 FAX [phone]) . Incidental and
Consequential 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-Voice Wired Microphones 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 product, 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 T echnical
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.

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