Audio Technica ES993 Installation And Operation

E
ngineered
The ES993 is a dual-element cardioid
condenser microphone with a remote dual
power module. It is designed especially for
applications requiring separate miking for PA and
broadcast. The circuit grounds for each channel
are completely isolated, greatly reducing the
potential for hum. The rigid-pipe design with
ball-in-socket base permits flexible positioning.
Each of the cardioid elements in the
microphone is shock mounted. The cardioid
polar pattern of the elements provides a 120°
angle of acceptance. Additional
interchangeable hypercardioid
omnidirectional (360°) elements are available.
The ES993 is designed with dual integral wind-
screens to ensure maximum security against
wind noise and plosives.
The remote power module can be powered
from any external 11V to 52V DC phantom
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Installation and Operation
The ES993 requires a phantom power supply
of 11–52V DC for each element. Output is
low-impedance balanced. The balanced signal
appears across Pins 2 and 3, while the ground
(shield) connection is Pin 1. Output is phased so
that positive acoustic pressure produces positive
voltage at Pin 2, in accordance with industry
convention.
The ES993 microphone is intended for
mounting to a hard surface such as a table, desk,
or podium. The microphone is supplied with
four #6 x 1 / " black oxide wood screws for
2
mounting the AT8510 power module, three
#8 x 1" black oxide wood screws for mounting
the microphone, and two #6 x
wood screws for mounting the switch bezel.
To install the microphone:
Drill a 4 mm ( 5 / ") hole centered in the area
32
where the microphone mount is to be
positioned. Pass the cable extending from the
microphone mount through this hole, and then
mount the microphone into position using the
three #8 x 1" screws.
To install the power module:
1. Be certain to set internal switches SW1 and
SW2 for desired output level and muting
operation prior to installing the power module.
To access the circuit board, remove the four
side screws and the four top screws on the top
cover. On the circuit board, set the switches
(SW1 and SW2) to the desired settings. SW1
may be set to Normal or 15 dB Pad. SW2 may
be set to Mute,Toggle, or Talk.
2. Find a convenient location on the underside
of the mounting surface to install the power
module, keeping in mind that the flex cable from
the remote switch to the power module is eight
inches long. Mount the power module into posi-
tion using the four #6 x 1 / " black oxide screws.
2
To install the remote switch:
Install this switch if you plan to use the mute
feature. You may install the microphone without
the mute switch if muting is not needed.
Drill a 10 mm ( 3 / ") hole centered in the area
8
where the remote switch is to be installed.
S
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Description
power supply. Low-frequency roll-off (120 Hz, 12
dB/octave) is integral to the microphone's design.
The microphone also includes a remote mute
switch with three modes (push-to-mute, toggle,
and push-to-talk) and LED indicator
light. Mute switching is made
possible using optical coupling,
which prevents the two elements'
signal paths from contacting one
another
conflicting grounds. A 15 dB pad switch
is housed in the power module.
user-
(100°) and The microphone is enclosed in a sturdy metal
housing with a low-reflectance black finish. Its
base is a table mount (hardware included) with
remote dual power module. The power module
has two 3-pin XLRM-type output connectors for
use with in-house and remote feeds.
Position the remote switch bezel so that the hole
lines up with the oval cut in the bezel. Install the
bezel using the two #6 x
Pass the flex cable of the remote switch through
the holes in the bezel and the table. Peel the
backing from the rear of the switch pad to
expose the adhesive, and press the switch into
position on the bezel.
Final connection:
1. Attach the connector assembly to the
microphone cable. A small, flat-blade screwdriver
is required for this procedure.
a. The braided shield wire connects to pin 1.
1 / " zinc-plated
b. The green, grey, red, blue, yellow, and white
2
wires connect to pins 2–7, respectively.
c. Tighten the binding screws securely and test
mic wires to make certain they are secure.
2. Connect the remote switch flex cable to
pins 1–3 on the power module. The flex cable is
in the correct position if the printed "1" on
the cable matches up with the #1 position on
the connector. (For your convenience, the
position numbers are also printed on the top
cover of the power module.)
3. Connect the female 7-pin terminal of the mic
cable to pins 4–10 on the power module.
Observe the keying of the connector as it is
inserted.
4. Connect the in-house and broadcast cables to
the 3-pin XLRM outputs. It is highly recommend-
ed to connect the primary in-house feed to Mic
Out A and the remote feed to Mic Out B.
ATTENTION! For muting to operate,
Channel A must be connected. If only Channel B
output is used, the microphone element will
operate, but the mute function will not.
While a modern condenser microphone is not
unduly sensitive to the environment, temperature
extremes can be harmful. Avoid leaving the
microphone in the open sun or in areas where
temperatures exceed 110° F (43° C) for long
periods of time. Extremely high humidity should
also be avoided.
ound
physically, alleviating
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1 / " zinc-plated screws.
2
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ES993
Dual-element
Cardioid Condenser
Rigid-pipe Microphone
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