This Studer card (Part Number: A949.0427) offers four analog microphone/line inputs, perfect for various audio setups.

Using this Studer mic/line in card is easy. First, make sure your D21m Modular I/O System is powered off. Then, carefully insert the card into the appropriate slot. Once it's in, power on the system. When connecting your microphones or audio sources, just plug them into the four available analog inputs. Remember to handle the card gently to avoid any damage. For maintenance, keep it in a clean and dry environment. If you notice any issues, power off the system immediately and check the connections.