Electro-Voice US690 Brochure & Specs

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 magnet with four times the power
potential of conventional microphone mag-
nets. 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 low-
ers distortion during peak sound pressure
levels.
The exceptional sensitivity of the US690 se-
ries 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 per-
cent more surface area than conventional de-
signs and is reinforced to prevent "breakup."
The result is an extended high-frequency re-
sponse with an open transparent sound qual-
ity that provides greater intelligibility for
today's most demanding sound system.
The uniform cardioid polar pattern of the
US690 series ensures superior gain-before-
feedback in live applications at all frequen-
cies—compared with other directional mi-
crophones with widely varying polar char-
acteristics.
The US690 series are enclosed in a rugged
Memraflex TM grille with Acoustifoam
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 mechani-
cally induced noise, and makes the US690
series the microphones of choice when rug-
gedness 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 goose-
neck microphone.
The model US690F gooseneck microphone
was designed to panel-mount in fixed instal-
lations where a high-performance, rugged,
non-removable microphone is required. The
microphone has a permanently attached, two-
US690
12-Inch Gooseneck,
Dynamic Microphone
conductor shielded cable, six feet long, to
permit ease of installation.
The model US690F-S gooseneck micro-
phone was designed to be surface-mounted
in fixed installations where a high-perfor-
mance, rugged, field-installable microphone
is required. The microphone has a perma-
nently attached, two-conductor, shielded
cable, six feet long, to permit ease of instal-
TM pop
lation.
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 condi-
tions that would render condenser micro-
phones useless—for years of trouble-free op-
eration.
Mounting Instructions for US690F
Select microphone location, taking care that
there are no obstructions under panel which
could be damaged; panel thickness may not
1
exceed / inch. Drill a
2
3
/ -in. hole at micro-
4