Electro-Voice ENG 618 User manual

Description
The Electro-Voice ENG 618 is a hypercar-
dioid-line (shotgun) back-electret condenser
microphonedesignedforbroadcastnewsgath-
ering applications where selective pickup in a
multisound environment is required.
The frequency response of the ENG 618 mi-
crophone can be varied by the 200 Hz roll-off
switch. In the roll-off position the ENG 618
provides a full-range, well-balanced sound
character for clean and accurate voice repro-
duction. In the flat position, low-frequency
sounds can be sourced for background spe-
cial effects or to mic specific natural or envi-
ronmental audio.
The microphone’s hypercardioid-line polar
characteristicprovidesmaximum output from
the desired source, while rejecting unwanted
off-axis noise.
The ENG 618 boom pole is designed to ex-
tend allowing the integral microphone to be
placed over several rows of people with little
effort. The product's light weight and excel-
lent balance allows consistent audio coverage
without fatigue.
The ENG 618 is easily collapsed to 18 inches
overalllengthforquickand efficienttransport.
ENG 618
Integrated Shotgun/
Boom-Pole Microphone
• Electret Condenser
• Collapses to 18 inches—expands
to 6 feet
• Highly Directional
• High Sensitivity
• Very Lightweight Carbon Fiber Pole
• Suspension Shockmount
• Built-in Headphone Amp
• Phantom or Battery Powered
• Low-Battery Indicator
Powering the ENG 618
The ENG 618 is powered by an external
12 - 52 volt phantom power supply or
9-V battery. The battery is needed to oper-
atethe headphone amplifiercircuit. Initial use
of the battery circuit, causes the low-battery
indicator to flash momentarily. The low-bat-
tery LED remains on when the voltage drops
indicating a need to replace the battery.
Operation
To operate the ENG 618, use high-quality
balanced cable with XLR connectors to con-
nect the electronics housing to the mixer in-
put.If the mixer is supplyingphantom power,
this will power the ENG 618 with or with-
out the 9-V battery. Without phantom power
the ENG 618 requires a 9-V battery.
An 1/8-in. mini-plug may be used to connect
an 8-ohm stereo headphone to the ENG 618.
Plugging into the headphone jack automati-
cally switches on the battery power to the
volume-adjustableheadphone amplifier. This
allows the operator to hear the “sound field”
through the headphones whether on-line via
the XLR connector or not. This can be very
usefulwhendoinga background environmen-
talsoundcheck beforetheactual “on-air” use.

ENG 618 Integrated Shotgun/Boom-Pole Microphone
ENG 618 Integrated Shotgun/Boom-Pole Microphone
2
The headphone jack could also be used to
connect to a portable tape recorder for quick
minimal equipment coverage.
Each segment of the telescoping boom pole
can be secured with a twist of the collet at
any position along its length. By loosening,
the segments can collapse quickly into each
other. Folding the microphone toward the
handle allows the unit to locate into the base
for storage.
Architectural and Engineering
Specifications
Themicrophone shall be a back-electretcon-
denser with a hypercardioid-line polar
pattern.The microphone shall be used in the
manner of a handheld microphone. The
microphone shall have a frequency re-
sponse from 50 Hz to 8 kHz with a swit-
chable 200 Hz roll-off. The product shall
have a balanced output with a 100-ohm
nominalimpedance. The open-circuit output
voltage shall be 19 mV/pascal. The micro-
phone capsule shall be made of brass; the
electronics housing shall include a bass roll-
off filter circuit, an adjustable output 9-volt
battery-powered headphone amplifier and a
low-battery LED indicator.
The microphone shall be permanently con-
nected to its extension boom pole and elec-
tronicsmodulevia an internalcoiled, shielded
miniature audio cable. The boom pole shall
be capable of being extended and made se-
cure at any position along its length.The fin-
ish on all exposed surfaces shall be a non-
reflecting black. The microphone shall be
suppliedwith windscreen and storage pouch.
The ENG 618 is specified.
Limited Warranty
Electro-Voice products are guaranteed
against malfunction due to defects in mate-
rials or workmanship for a specified period,
as noted in the individual product-line
statement(s)below,or inthe individual prod-
uct data sheet or owner’s manual, beginning
with the date of original purchase. If such
malfunction occurs during the specified pe-
riod, 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
Warranty does not apply to: (a) exterior fin-
ish or appearance; (b) certain specific items
described in the individual product-line
statement(s)below,or inthe individual prod-
uct data sheet or owner’s manual; (c) mal-
function resulting from use or operation of
theproductother than asspecifiedin the prod-
uct data sheet or owner’s manual; (d) mal-
function 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 rep-
resentatives. ObtainingWarrantyService:
To obtain warranty service, a customer must
deliverthe product,prepaid, toElectro-Voice
Service or any of its authorized service rep-
resentatives together with proof of purchase
of the product in the form of a bill of sale or
receipted invoice. A list of authorized ser-
vicerepresentativesis availablefromElectro-
Voice Service at 600 Cecil Street, Buchanan,
MI 49107 (800/234-6831 or FAX
616/695-4743). Incidental and Conse-
quential Damages Excluded: Product re-
pairorreplacement and returnto the customer
are the only remedies provided to the cus-
tomer. Electro-Voice shall not be liable for
any incidental or consequential damages in-
cluding,without limitation, injury to persons
or property or loss of use. Some states do not
allow the exclusion or limitation of inciden-
tal or consequential damages so the above
limitationor exclusion may not apply to you.
Other Rights: This warranty gives you spe-
cificlegal rights, andyou mayalso have other
rights which vary from state to state.
Electro-Voice Wired Microphones are
guaranteed against malfunction from any
causefor two (2) years from the dateof origi-
nal purchase. In addition, the Limited War-
ranty 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 discontin-
ued. Any and all active electronics incorpo-
rated in these microphones are guaranteed
against malfunction due to defects in mate-
rials 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. Addi-
tional details are included in the Uniform
Limited Warranty statement.
For warranty repair or service informa-
tion, contact the service repair department
at: 616/695-6831 or 800/685-2606.
Fortechnical assistance, contact Technical
Support at 800/234-6831 or 616/695-6831,
M-F, 8:00 a.m. to 5:00 p.m. Eastern Stan-
dard Time.
Specifications subject to change without no-
tice.

ENG 618 Integrated Shotgun/Boom-Pole Microphone
ENG 618 Integrated Shotgun/Boom-Pole Microphone
3
Figure 1—Frequency Response
Figure 2—Polar Response 5 dB per division

ENG 618 Integrated Shotgun/Boom-Pole Microphone
ENG 618 Integrated Shotgun/Boom-Pole Microphone
4
Microphones–Boom-Pole Part Number 534897 — 9914
600 Cecil Street, Buchanan, MI 49107
616/695-6831, 616/695-1304 Fax
©Telex Communications, Inc. 1999 • Litho in U.S.A.
Specifications
Generating Element:
Condenser, back electret
Frequency Response (see Figure 1 ):
50 - 8,000 Hz
200 Hz roll-off switch
Polar Pattern (see Figure 2 ):
Hypercardioid-line
Sensitivity, (Open Circuit Voltage,
1 kHz):
19 mV/pascal
Power Level, 1 kHz (0 dB = 1 mW/
pascal):
-55 dB
Clipping Level (1% THD):
120 dB SPL
Equivalent Noise:
15 dB SPL, A -weighted
Dynamic Range:
105 dB
Output Impedance, 1 kHz:
100 ohms
Power Requirements:
12-to 52-V dc phantom supply or 9-V
battery
Current Consumption:
2 mA. phantom
20 mA. battery
20 hours estimated battery life.
Polarity:
A positive pressure on the diaphragm
produces a positive voltage on output
pin 2 (+).
Finish:
Nonreflecting black
Dimensions:
Length:
46 cm (18 in.) collapsed
180 cm (6 ft.) extended
Diameter:
9 cm (3.5 in.) circle
Capsule Diameter:
5.3 mm (0.21 in.)
Net Weight:
1000 grams (2.0 lb)
Shipping Weight:
1,400 grams (3.1 lb)
Accessories Furnished:
Windscreen
Vinyl utility pouch with belt loop