Digital Messaging Unit - 1U Rack Mount

The Digital Messaging Unit is a professional 1U rack-mountable device designed for automated, scheduled audio playback in commercial and public environments. It provides a highly flexible and reliable solution for background music, timed announcements, and audio alerts, all controlled from a central, easy-to-manage system.

Audio content is stored on a removable SD card, offering immense versatility. You can pre-load audio files by inserting the card into a PC, or record directly onto the unit using the integrated microphone/line input. Schedules are stored as a separate file on the same SD media, which can be edited using the included free PC software. This allows for effortless creation of complex weekly routines—simply save different audio and schedule combinations on separate SD cards and swap them as needed.

A key feature is the dual-input capability. The mic/line input can be used for direct recording or for live announcements, which can override scheduled SD playback for immediate paging. A dedicated BGM (Background Music) line input is also provided, complete with its own level control. This input is automatically muted when scheduled messages or live paging is active, ensuring clear, uninterrupted announcements.

The unit supports extensive programming, with capacity for up to 99 individual audio tracks and 99 programmable schedule events. Each event can be set to trigger a specific audio file based on a 24-hour clock and selected days of the week. The DM-8 integrates seamlessly into any existing sound system via its balanced terminal or unbalanced RCA outputs, providing a mono audio feed.

Constructed for professional use, it features comprehensive front-panel controls for paging, recording, clock setting, and schedule management. It accepts a wide range of power inputs (100-240V AC or 24V DC) and includes essential features like +20V phantom power (switchable via DIP switches) for compatible microphones. Supppl