I have two Pro2c consoles setup sharing a stage box. I need to get outputs from my FOH desk to hit the outs on the DL251, I only have 2 AES50 lines running between the desks. Am I missing something obvious or do I need a 3rd line?
Typically you would run three AES50 lines to a DL251 from a single console. Two of them do 24x24 each and the third is your redundant spare.
If connecting two desks together with a stagebox, my understanding is you connect one desk to the stage box and then connect the two desks together, also using three additional AES50 lines.
You then utilize the patchbay on the primary console to route the channel signal from the stagebox to the second desk.
The exception to this is that magical and pricey stagebox that has multiple mic pres per channel. I forget the model number but, man, I want one of those. Though we currently use an analog split and two DL251 stageboxes, hey its redundancy