AR-DM31-B
16 Channel Digital Audio Monitor - 1RU Mainframe with Tri-Color LED Bar Graphs
Owner's Manual (PDF) Spec Sheet (PDF) Firmware Upgrade (ZIP)
- 16 Tri-Color VU/PPM 10-Segment LED Bar Graphs
- User-configurable with a variety of modules
- 100% Digital Processing
- Class D Audio Amplification
- Selectable Stereo Downmix Modes
- USB 2.0 Port enables on-site firmware upgrades
- Ethernet port allows remote alarm monitoring
- Balance and Volume Control
- 1/4-inch Headphone Jack
The AR-DM31-B is a third generation digital audio rack-mount monitor from Marshall, featuring improved audio quality and a redesigned chassis. The AR-DM31-B has reengineered speaker enclosures to maximize output power and new front panels that allow more natural reproduction of all frequencies in the 200-20,000 Hz range. The existing volume and balance knobs have been modified for easier access.
The AR-DM31-B is ideal for TV facilities, studios, post production, VTR bays, mobile production vehicles, satellite links, and wherever multichannel audio monitoring is required. The AR-DM31-B supports 16 audio channels with four slots available for interchangeable input / output modules. This unit also provides pristine audio quality and unrivaled flexibility with 100% digital processing, Class D (digital) amplification, selectable stereo downmix modes, Dolby® Digital / Dolby® E decoding capability (with optional ARDM-D552 module), a 1/4-inch headphone jack with Level control, and a USB port for on-site firmware upgrades.
The AR-DM31-B provides 10-segment tri-color bar graphs, while supporting VU and peak metering. Channel, Group, Mix, Dolby®, and Balance selection, and saved configurations are easily accessed via the system's large navigation buttons. For audio playback, the AR-DM31-B provides two large, high performance / magnetically-shielded loudspeakers and subwoofer.
Marshall Electronics 16 Channel Digital Audio Monitors are equipped with features to help broadcasters comply with CALM and EBU loudness regulations. The monitors provide timely visual and audio alerts, email notifications and complete logging of noncompliant signals.
ARDM-HDSDI
- Multi-Rate SDI/HD-SDI Video Input (Auto-Detect)
- Re-Clocked SDI/HD-SDI Loop-Through Output
- SDI: SMPTE 259M-C / HD-SDI: SMPTE 292M
- Supports 8 Stereo Embedded Channels or Dolby®
- Multi-Channel Decoding*
ARDM-AES-BNC
- 4 Unbalanced AES/EBU Inputs (BNC)
- 4 Passive Loop-Through Outputs (BNC)
- Supports 4 Stereo Channels or Dolby® Multi-Channel Decoding*
ARDM-AES-XLR
- 4 Balanced AES/EBU Stereo Inputs (DB-25)
- 4 Passive Loop-Through Outputs (DB-25)
- Break-Out Cable included (DB-25 to 8 XLR)
- Supports 4 Stereo Channels or Dolby® Multi-Channel Decoding*
ARDM-AA-8XLR
- 8 Balanced Analog Audio Inputs (DB-25)
- Nominal level: 0,+4,+6, or+8 dBu = -20dBFs
- Break-Out Cable included (DB-25 to XLR)
ARDM-AES-4OUT
- 4 Unbalanced AES/EBU Outputs (75Ω BNC)
- Capable of 4 AES/EBU Outputs
De-embedded from HD-SDI or SD-SDI input - Capable of 4 AES/EBU Outputs Decoded
from Dolby® E / Dolby® Digital bitstream*
Requires optional Dolby® E / Dolby® Digital Decoder Module (ARDM-D552)
| HDSDI Input Module | Dolby Support | ARDM-D552 Module |
| 1/4" Headphone Jack | Yes | |
| 16 x 10 Segment LED Bar Graph | Yes | |
| Internal Speakers | Yes | |
| Modular Input Slots | 4 | |
| Self-Sensing | Yes | |
| 1 x SDI 75Ω BNC | 16 Channels Embedded Audio | |
| PCM,Dolby E, Dolby Digital AC3, | Yes | |
| Video Formats | 525i, 625i, 720p, 1080i, 1080p | |
| De-Embedded from SDI | Yes | |
| AES BNC Module | Sample Rates: | 44.1kHz, 48kHz |
| Unbalanced 75Ω BNC | 4 x AES/EBU Inputs | |
| Unbalanced 75Ω BNC | 4 x AES/EBU Passive Loop Outputs | |
| Formats | Professional and Consumer (SPDIF) | |
| PCM,Dolby E, Dolby Digital AC3, | Yes | |
| AES XLR Module | 4 x AES/EBU Balanced 110Ω | DB-25 Connector |
| Formats | Professional and Consumer (SPDIF) | |
| PCM, Dolby E, Dolby Digital AC3, | Yes | |
| Sample Rates: | 44.1kHz, 48kHz | |
| AA-8XLR Module | 8 x Analog Balanced XLR | DB-25 Connector |
| Reference: | 0, 4, 6, or 8dBu = -20dBFS Selectable | |
| DB-25 Pinout: | GOLD-DB25-XLR-05 Break-Out Cable | |
| AES 4 Out Module | Output | 4 x AES/EBU Unbalanced 75Ω BNC |
| Formats | Professional and Consumer SPDIF | |
| Audio Coding: | PCM,Dolby E, Dolby Digital AC3, | |
| Sample Rates: | 44.1kHz, 48kHz | |
| AA-2 Out Module | Outputs | 2 x Analog Balanced XLR |
| Reference: | -20dBFS = 8dBu | |
| Control Features | Volume Control | Yes |
| Balance Control | Yes | |
| Ethernet | Yes | |
| Memory Stick Upgradable | Yes | |
| Mute Functions | Yes | |
| Controls on front Panel | Yes | |
| SRC Switch Selector | Yes | |
| Handles | Yes | |
| Power | Voltage | 24 VDC |
| Consumption | Less than 45W | |
| Connector | 4Pin XLR | |
| Dimensions |
Rack Unit dimensions | 18.94” x 1.75” x 12.83” (1RU) |
| Weight (Main Body) | 3.7 lbs |
* Pricing does not reflect freight costs and applicable taxes and duties
* Pricing, specification and features are subject to change