20
Module Installation (continued)
DOLBY Module Installation
IMPORTANT:
The following procedure involves exposing and handling bare electronic components. Proper anti-static
precaution must be taken before opening the AR-DM3X-X Audio Monitor to avoid damage during installation. This
includes working on a static-free surface and wearing a grounded wrist-strap or another type of grounding device.
Opening the AR-DM3X-X Audio Monitor without proper anti-static precaution may void the warranty.
For further
information, contact Marshall Electronics.
Use the following instructions to install the ARDM-D552 module in the AR-DM3X-X Audio Monitor.
1. Ensure that power is disconnected from the audio monitor.
2. Disconnect all inputs and outputs.
3. Remove the top panel of the audio monitor by removing the 14 Phillips-head screws shown in the following diagram:
Remove 14 screws (circled) to open the top panel.
Product Overview
The AR-DM3X-X series is a 16-channel digital audio monitoring system, featuring tri-color LED bar graphs on certain
models. Designed for ultra-near field audio monitoring in space critical environments, the AR-DM3X-X series is ideal for
TV facilities, studios, post-production facilities, VTR bays, mobile production vehicles, satellite links, and wherever multi-
channel audio monitoring is required.
The AR-DM3X-X series features stereo loudspeakers in compact 1RU or 2RU form factors, with Class D Amplification
and 100% digital processing providing pristine audio quality. Interchangeable input and output modules provide unrivaled
flexibility – up to four I/O modules can be installed in a single AR-DM3X-X audio monitor, each module with up to 16
channel inputs, providing a possible 64 channels per audio monitor. Input choices include balanced/unbalanced
AES/EBU, SDI video with embedded audio, and balanced analog audio. With an optional DOLBY
®
module, the AR-
DM3X-X supports decoding and monitoring of
DOLBY
®
E
and
DOLBY
®
DIGITAL
(AC-3) signals, with the option to output
discrete decoded channels or pass through encoded bit streams. Flexible monitoring modes include mono, stereo, and
various stereo downmix configurations for multi-channel audio. Additional features include volume and balance controls, a
headphone jack, and a USB port for on-site firmware upgrades.
Features
■
Superior Audio Quality
Stereo Loud Speakers provide superior audio quality in a compact 1RU or 2RU form factor.
■
Flexible I/O
Modular design allows the AR-DM3X-X series monitors to be customized with a variety of inputs and outputs, including
balanced and unbalanced AES/EBU, SDI with embedded audio, and balanced analog audio.
■
Selectable Stereo Downmix Configurations
Multi-channel audio can be downmixed in a variety of stereo configurations including 5.1, 7.1 and more.
■
LKFS Monitoring via LED Bar Graph
The AR-DM3X-X series of audio monitors allows a view of LKFS values for the audio input currently being monitored
(1-B and 2-B only).
■
DOLBY DIGITAL / DOLBY E Decoding
Optional ARDM-D552 module allows decoding of DOLBY E and DOLBY DIGITAL multi-channel audio signals.
Decoded channels can be output via output modules. A variety of downmix presets based on DOLBY metadata are
available, including Lt/Rt, Lo/Ro, etc.
® DOLBY is a registered trademark of Dolby Laboratories
