When patching a 225L module across Large channel 20, what is the first step?

To successfully patch a 225L module across Large channel 20, the first step is to connect the LG CH insert send to the 225L in. This step is crucial as it establishes the connection between the mixer and the processing module, allowing audio signals to be routed from the mixer into the module for processing.

By linking the insert send to the 225L, the signal can be modified by the module, which can then be returned to the mixer. This step ensures that the signal flow is correctly set up before any further actions are taken. Following this, other tasks such as connecting to the main output or engaging the insert return can be completed, but establishing the initial connection is essential for proper functionality.