Audio-Technica ATND933a Manual

Audio-Technica Mikrofon ATND933a

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Side 1/2

ATND933aML & ATND933aWML MicroLine® Condenser

Hanging Microphones with Dante™ Network Output

MIC A

1.5 T IMES

DISTANCE “X”

MIC B

Figure 1 Figure 2

LESS THAN 2 TIMES “X”

DISTA

NCE “

X”

90°

ANGLE OF

ACCEPTANCE

Network Microphones

Features

• Wall/ceiling plate power module with Dante™ network output permits

permanent installation in standard, 2-gang electrical box and direct

connection to the network via Ethernet cable

• MicroLine® polar pattern provides narrow 90º acceptance angle

• Low-proﬁle design with low-reﬂectance ﬁnish for minimum visibility

• Superior o-axis rejection for maximum gain before feedback

• Logic input accepts external switch for connection to the Dante™ network

• UniGuard® RFI-shielding technology oers outstanding rejection of radio

frequency interference (RFI)

• UniSteep® ﬁlter provides a steep low-frequency attenuation to minimize

pickup of undesired ambient noise

• Available interchangeable elements permit angle of acceptance

from 90° to 360°

• Steel hanger positions microphone over choirs, instrumental groups

and theater stages

• Available in two colors: black (ATND933aML) and white (ATND933aWML)

Description

The ATND933aML is a wide-range miniature condenser microphone with

a MicroLine® (line cardioid) polar pattern. It is designed for quality sound

reinforcement. The combination of small size and excellent response makes the

microphone ideal for suspension over choirs, instrumental groups or theater stages.

The microphone is equipped with UniGuard® RFI-shielding technology, which oers

outstanding rejection of radio frequency interference (RFI).

The microphone’s MicroLine® (line cardioid) polar pattern provides a 90° angle

of acceptance. Additional interchangeable elements with omnidirectional (360°),

cardioid (120°) and hypercardioid (100°) pickup patterns are available.

The microphone includes a 15.2 m (50') permanently attached miniature cable. Its free

end connects to the provided ATND8734a Dante-enabled wall/ceiling plate power

module via a special TA3F-type connector designed to optimize RFI immunity. The

power module features a removable, circular cover plate that can be painted with

commercially available spray paint. The power module includes an RJ-45 output jack

for easy connection to the network via CAT5e (or better) cable. Additionally, logic input

screw terminals accept an external switch for connection to the Dante™ network.

The power module is equipped with an 80 Hz low-cut UniSteep® ﬁlter, three-position

input gain level selector (+30 dB, +40 dB and +50 dB), and red/green LED status

indicator, which can all be controlled remotely via third-party software.* Default settings

for the power module are as follows: low-cut ﬁlter o, +40 dB input gain, LEDs o.

The microphone comes equipped with a vinyl-coated steel hanger for positioning

over a choir/orchestra/stage, and a two-stage foam windscreen. The microphone is

enclosed in a rugged housing with a low-reﬂectance black ﬁnish. It is also available

with white housing, cable, hanger and windscreen as the ATND933aWML.

Installation and Operation

A uniform 90° angle of acceptance provides well-balanced audio pickup. The

microphone should be located forward of the front-most source, above the rear-most

source, and “aimed” between them (Fig.1). Increasing the height of the mic above

the sources will tend to equalize sound levels between them, but may also increase

background/reverberant sound pickup. When possible, the distance from the mic to

the rear-most source should be no more than twice the distance to the front source,

to maintain front-to-rear balance (Fig. 1).

Width of pickup is approximately 1.5 times the distance to the closest source. If

additional mics are needed for wide sources, they should be positioned apart laterally

at least 1.5 times the distance to the front source, to avoid phase cancellation (Fig. 2).

To orient the microphone in the proper direction, twist the housing slightly in its wire

holder. (Clockwise rotation moves the microphone to the right; counterclockwise

rotation moves it to the left.)

The provided two-stage foam windscreen simply snaps over the head of the

microphone, eectively reducing noise from wind or ventilation air currents.

The power module allows for remote control of a high-pass ﬁlter to provide easy

switching from a ﬂat frequency response to a low-end roll-o. The roll-o position

reduces the pickup of low-frequency ambient noise (such as trac, air-handling

systems, etc.), room reverberation and mechanically coupled vibrations. Mic gain and

LED ring color may also be controlled remotely through the power module.

The power module is equipped with logic input screw terminals which can be used

to trigger functions on compatible Dante-enabled devices, such as a video camera’s

pan/tilt or a rooms lighting preset.

The ATND8734a wall/ceiling plate power module is designed to be mounted in a

standard metal U.S. 2-gang electrical box. For safety and best performance, use the

electrical box only for the ATND8734a; do not include any AC power conductors.

Connect the TA3F-type connector on the microphone cable to the TB3M-type

connector in the power module plate.

Avoid leaving the microphone in the open sun or in areas where temperatures exceed

110° F (43° C) for extended periods. Extremely high humidity should also be avoided.

Note: Audio-Technica has developed a special RFI-shielding mechanism, which is an

integral part of the connectors in the Engineered Sound® line. If you remove or replace

the connector, you may adversely aect the unit’s RFI immunity. Audio-Technica oers

a crimp tool (ATCT) and RFI shields that enable you to shorten the cable and correctly

reinstall the connector while maintaining the highest level of RFI immunity.

Produkt Specifikationer

Mærke:	Audio-Technica
Kategori:	Mikrofon
Model:	ATND933a

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