This Studer card (Part Number: A949.0427) offers four high - quality analog microphone and line inputs, perfect for your audio needs.

To use this Studer card, first make sure your D21m Modular I/O System is powered off. Carefully insert the card into the appropriate slot. Once it's in place, power on the system. When connecting your microphones or line - level devices, use the four available inputs. Make sure to check the connections are secure. For maintenance, keep the card in a clean and dry environment. Avoid exposing it to extreme temperatures or humidity. If you encounter any issues, power off the system before checking the card and connections.