Electro Voice IP Phone ENG 618 User Manual

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  
Description  
Powering the ENG 618  
The Electro-Voice ENG 618 is a hypercar-  
dioid-line (shotgun) back-electret condenser  
microphone designed for broadcast news gath-  
ering applications where selective pickup in a  
multisound environment is required.  
The ENG 618 is powered by an external  
12 - 52 volt phantom power supply or  
9-V battery. The battery is needed to oper-  
ate the headphone amplifier circuit. 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.  
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.  
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 supplying phantom 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.  
The microphone’s hypercardioid-line polar  
characteristic provides maximum output from  
the desired source, while rejecting unwanted  
off-axis noise.  
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-adjustable headphone 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  
useful when doing a background environmen-  
tal sound check before the actual “on-air” use.  
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  
overall length for quick and efficient transport.  
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ENG 618 Integrated Shotgun/Boom-Pole Microphone  
Figure 1—Frequency Response  
5 dB per division  
Figure 2—Polar Response  
3
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ENG 618 Integrated Shotgun/Boom-Pole Microphone  
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:  
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.)  
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  
Net Weight:  
1000 grams (2.0 lb)  
Shipping Weight:  
1,400 grams (3.1 lb)  
Accessories Furnished:  
Windscreen  
A positive pressure on the diaphragm  
produces a positive voltage on output  
pin 2 (+).  
Vinyl utility pouch with belt loop  
600 Cecil Street, Buchanan, MI 49107  
616/695-6831, 616/695-1304 Fax  
©Telex Communications, Inc. 1999 • Litho in U.S.A.  
Microphones–Boom-Pole  
Part Number 534897 — 9914  
4
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