Making 2 M7CL mirror each other

[Tracy McMahen]

We want to install 1 Yamaha M7CL with 3 SB 168 to provide FOH and 1 M7CL for recording/live streaming. We would like to use the 3 SB 168 instead of a conventional splitter to route all channels to both boards. I can't find documentation that supports this application, has anyone tried this?

[Arlin]

Sure, you can do this my using 2 Yamaha M7CL-48ES models & 3 SB168-ES boxes.

[Brad Weber]

My understanding is that it can be done with two M7CL48-ES consoles and three SB168-ES boxes as Arlin noted, however you may have to consider how that impacts head amp control and return channels.

Typically, the SB168-ES input routing is no problem as it is the same 48 channels 'split' downstream to both consoles but the returns may be different as they may not only be different signals from each console but you may want the outputs of one console available as inputs at the other console. It's not necessarily a problem but you may need to start thinking about how things connect and what is assigned to the EtherSound channels.

The head amp control is the aspect that you are sharing remote preamps between the two consoles. I have not actually tried it but I believe either console can be the 'master' that controls the SB168-ES preamps, but any adjustment is going to affect the signal to both consoles and I don't think there is any automatic compensation capability.

[Tracy McMahen]

Thanks Guys

My understanding is that the head amps in the 168 must be bypassed and transferred via software to FOH for gain control and that the production M7 would slave to whatever gain setting established there. We would simply like to allow mixing and effects capability on the prod board.