This Studer card, part number A949.0420, is a great addition to your D21m or D23m Modular I/O System. It offers 8-channel analog line output for smooth operation.

To use this Studer 8-channel analog line out card, first make sure your D21m or D23m Modular I/O System is turned off. Then carefully insert the card into the appropriate slot in the system. After that, you can turn on the system and start using it for your audio needs. When handling the card, be gentle to avoid any damage. For maintenance, keep it in a clean and dry place. If you notice any issues, it's best to contact a professional for help.