Filter
Top Products
12000 Portland Avenue South, Burnsville, MN 55337
Phone:952/884-4051, Fax:952/884-0043
www.electrovoice.com
© Telex Communications, Inc. 10/2004
Part Number 534679 Rev D
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.
Dimension Drawing:
Frequency Response: Wiring Diagram:
Polar Response:Architects’ and Engineers’
Specifications:
The microphone shall be a dynamic cardioid with integral blast
filter protecting all acoustic openings. The blast filter shall also
serve as a shock mount for the internal microphone transducer.
The microphone shall have a wide-range uniform frequency
response from 45-20,000 Hz. Integral passive networks,
controlled with three recessed slide switches, shall be provided
with switches in the “flat” position, the microphone shall be
essentially flat from 80-2,000 Hz with a 6-dB rise in response
from 2,000-16,000 Hz. With one filter switch in the “roll-off”
position, low-frequency response shall tilt down 6 dB from 250
to 100 Hz. A second filter switch, when in the “roll-off” position,
shall have a gentle roll-off of 12 dB from 1,000 to 100 Hz. The
third filter switch, when in the “roll-off” position shall decrease
the high-frequency rise by 3 dB. The open circuit voltage
sensitivity shall be 3.1 mV/Pascal at 1,000 Hz and the power
level sensitivity shall be -51 dB at 1,000 Hz (0 dB equals 1 mW/
pascal.) The magnetic circuit shall be a nonwelded circuit and
employ a neodymium alloy magnet. The transducer shall employ
a hum-bucking coil, with a resulting hum sensitivity of -130 dBm
at 60 Hz in a 1 millioersted field, and a shield to prevent dust
and iron particles from reaching the diaphragm. Rated
impedance shall be 150 ohms. Line shall be balanced to ground
and phased. Pin 2 shall have a positive voltage with reference
to Pin 3 with positive pressure on the diaphragm. Response at
any angular position away from the major axis shall be essentially
similar to the response on the major axis, except uniformly at all
frequencies by an amount appropriate to that angular position.
Polar characteristics shall be sufficiently uniform in all planes
so that it is, effectively, a cardioid of revolution. The case shall
be made of steel. The microphone shall have a maximum
diameter of 54.4 mm (2.14 in.), a body diameter of 49.2 mm
(1.94 in.) and a length of 216.7 mm (8.53 in.). The finish shall
be nonreflecting satin nickel. A stand clamp shall be supplied.
The Electro-Voice RE27N/D is specified.
RE27N/D Part Number:
• 16271446