The Compact Stagebox adds a cost-effective expansion option, offering a high density of I/O connections in only 4U of rack space. The modular unit is fully configurable but is offered with a standard configuration of 32 mic/line inputs and 16-line outputs. It is possible to equip the Compact Stagebox with an additional 16 mic/line input module instead of the output module, then providing 48 inputs. In this case, analogue or AES/ EBU outputs can still be obtained on D-Type connectors via D21m cards fitted to the expansion slots. The expansion slots for standard Studer® D21m I/O cards may be used for connecting to formats including SDI (SD/HD/3G), AES/EBU, mic/line inputs and line outputs.

The Compact Stagebox is connected to the host console I/O using optical-fiber MADI, and it has redundant MADI cable capability. The unit comes complete with twin redundant power supplies, thermostatically controlled fan cooling and full LED status monitoring. An 8-channel GPIO interface is also provided.