Electro-Voice RE27N/D Manual de Usario

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RE27N/D
Variable-D® N/DYM®
Dynamic Cardioid
Microphone
General Description:
Technical Specifications:
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The Electro-Voice RE27N/D is a professional-quality dynamic
cardioid microphone designed for broadcast production
announce and voice-over, high-quality recording and sound
reinforcement applications. The RE27N/D utilizes a
revolutionary neodymium-alloy magnet and a reinforced
diaphragm dome, a combination offering increased sensitivity
(up to 6-dB more output), undistorted output at high sound
pressure levels and an extended high-frequency response.
The exceptional sensitivity of the RE27N/D, excellent transient
response and inherently low noise of the dynamic transducer,
all combine to ensure a superior signal-to-noise ratio, easily
comparable to the finest condenser cardioid microphones. to
further reduce noise, a highly effective hum-bucking coil is
used to attenuate hum from lighting and other sources. The
RE27N/D’s continuously Variable-D‚ design reduces bass-
boosting “proximity effect to maintain a uniform low-frequency
response, up-close or at a distance. Two easily operated bass
roll-off switches, offering a sharp low-frequency cut at 200 Hz
or a gentle roll-off, are available for special situations where
bass attenuation is required. A third switch is available for
reducing the high-frequency treble boost. The true, uniform
cardioid polar pattern of the RE27N/D offers the greatest
rejection at 18 off axis, insuring superior gain-before-
feedback. An integral blast and wind filter covers each acoustic
opening on the RE27N/D, allowing “close-talksituations with
no worry of P-pop,” breath sounds or excessive sibilance.
Part of the filter also shock mounts the internal microphone
transducer, reducing the transfer of vibration from external
sources. This shock-mount system along with the extremely
rugged exterior steel casing allows the RE27N/D to withstand
all the rigors of professional use.
Key Features:
Studio condenser performance from self-
generating transducer
Consummate announce microphone
Ideal for sampling
Switch-selected E.Q.
Effective internal shock, pop and wind
protection
Exceptional sensitivity assures high signal-
to-noise
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:Architectsand 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-offposition 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

Especificaciones del producto

Marca: Electro-Voice
Categoría: micrófono
Modelo: RE27N/D

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