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.