Marashall AR-DM51-B User Manual

Broadcast A/V Division

AR-DM51-B

Digital Audio Monitor

User Manual

Table of Contents

1. Introduction

2. Features

3. Package Contents

4. Front Panel

5. Control Buttons

6. Rear Panel

7. Specifications

8. Operation

9. Software

9.1. Connecting by Ethernet

9.2. Connecting by Serial Link

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9.3. Using the Remote Control Application

Warranty

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AR-DM51-B Manual

1. Introduction

The Marshall AR-DM51-B Digital Audio Monitor emphasizes a straight-forward, high-quality design
and simplicity of operation. The AR-DM51-B exceeds the capabilities of many larger 2RU designs,
and is equally at home in production fly packs, news vans, remote OB vans, and equipment rooms.

2. Features

High Performance Audio

• Matches or exceeds many larger 2RU designs

• Enough “punch” for the noisiest server rooms (up to 100dB)

Multiple Input Types

• 3G SDI with Looping Output

• HDMI

• Analog XLR Balanced - 2 Channels

• Analog RCA Unbalanced Line Level - 2 Channels

Flexible Output Types

• AES-EBU Pair Balance XLR (110-ohms)

• Analog Unbalanced RCA Line Level - 2 Channels

2” Video Display

• Provides confidence image of selected HDMI or SDI source

• Text indicates Source, Format, Selected Channels and more

Controllable via Ethernet or RS-232 Serial

• Control application downloadable from Marshall website

• Select audio scale types, sources, etc.

Compact 1RU Design Saves Rack Space

• Minimum size

• Low power consumption, low heat emission into rack

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3. Package Contents

Please ensure the following are included:

• One AR-DM51-B Main Chassis

• One 12-Volt Universal Power supply (120/240V – 50/60Hz)

Additionally, free control software is available for download on the Marshall website. Visit www.
marshall-usa.com for more information.)

4. Front Panel

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1. Speakers

Provides sound from two channels except when Solo Buttons are pressed.

2. LCD Video Display

When an HDMI or SDI source is being monitored, the associated video will appear here. Also a
text overlay shows input source, selected audio channels, and source video parameters.

Note: The LCD display will be black when Analog Sources are selected.

3. Headphone Jack

Designed to accept stereo headphones with 3.5mm plug.

4. Control Buttons

Provides quick access for standard equipment operation.

5. Volume / Mute Knob

Turn the knob to adjust the sound level of both speakers.

Press in on the knob to instantly Mute the speakers.

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