BDI GPM-300-9 Crosspoint Switcher

Broadcast Audio Routing And Backup Switching In One Chassis

The BDI GPM-300-9 is a general-purpose matrix audio switcher built for broadcast facilities that need dependable routing, fast source changes, and automatic backup behavior when a feed drops out. It combines a crosspoint router with logic designed for real stations, so you can manage program chains, air paths, and support feeds without stacking multiple switchers in the rack.

GPM-300-9 I O Configuration For Composite And AES Audio Paths

This GPM-300-9 configuration provides 4 composite inputs and 4 composite outputs, plus 4 AES digital stereo input pairs and 4 AES digital stereo output pairs, giving you a mixed-format toolbox for plants that carry both AES3 and composite FM stereo signals. It’s a practical choice for radio environments where composite distribution and digital routing need to live side-by-side for processing chains, transport links, translators, or facility distribution.

Crosspoint Matrix Control For Flexible Signal Distribution

As a crosspoint switcher, the unit lets you route available sources to destinations as your facility requires, including emergency routes where any input can be sent to any output when you need to recover quickly. For daily operations, it supports clean routing for shared services like EAS system sharing, network join feeds, or studio-to-studio backup paths, helping engineers keep signal flow organized and consistent.

Per-Output Silence Detection For Automatic Failover

Each output includes its own silence sensor so the switcher can detect loss of audio and automatically switch to a predefined backup source before dead air becomes a broadcast problem. Settings are programmable so you can tune threshold and timing behavior to match your plant, and an auto-revert function can return your routing to the primary source once audio has been restored.

Switcher In Switcher A B Presets For Redundant Sources

The GPM-300 platform supports a switcher-in-switcher mode where each output can have designated A and B inputs that are selectable from the full input set. This is useful for redundant workflows, common source sharing, and creating multiple independent “mini switchers” inside one chassis, so operators can handle normal and backup feeds without reprogramming whole routes.

Integration Friendly Control For Broadcast And Pro Audio Systems

Designed for facility integration, the GPM-300 series supports common control and monitoring approaches used in broadcast plants. That helps when you need the router to work with station automation, remote control panels, engineering access, or plant-wide monitoring strategies, especially in environments where reliability and repeatable switching behavior matter more than flashy interfaces.