Module Installation (Continued); Dolby Module Installation Product Overview; Features - Marshall Electronics AR-DM2X-X Operating Instructions Manual

Digital audio monitor with dolby / dolby e capability
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Product Overview
The AR-DM2X-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-DM2X-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-DM2X-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-DM2X-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
DM2X-X supports decoding and monitoring of DOLBY
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-DM2X-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-DM2X-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
®
module, the AR-
®
®
E and DOLBY
DIGITAL (AC-3) signals, with the option to output
Module Installation
Input / Output Module Installation
The ARDM-series input and output modules are designed for simple installation and removal without tools. Use the
following instructions to install a module:
1. Ensure that the audio monitor is powered off. Modules cannot be installed or "hot swapped" while the audio monitor
is powered on.
2. Remove the blank cover if present over the empty slot using a Philips screwdriver with appropriate head size.
3. Carefully slide the module into the open slot, aligning the side edges of the module with the guides inside the
monitor. Push the module all the way in until it locks into place.
4. Tighten the two thumbscrews on the face of the module.
EMPTY SLOT
COVER
Note: Avoid touching components inside the module to prevent static discharge
THUMB SCREWS

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