Dual-Rack input expander

You can link 2 MixRacks to expand to 128 input channels feeding the 32 mix buses using the Dual-Rack function.  It does not increase the number of mix buses.

One MixRack becomes the 'MASTER', the other the 'SLAVE'. Any size of MixRack may be linked in this way.

Audio is linked by connecting Slave Port A to Master Port B Link 1. Control is linked by connecting a Slave NETWORK port to Master NETWORK port using a separate CAT5 cable, or by bridging the network over ACE as shown below:

Note -

MASTER Port B inputs 1-32 are reserved for receiving buses from the SLAVE.  Inputs 33-64 are user assignable. Outputs 1-64 are user assignable to route signals from the MASTER to the SLAVE if required.

SLAVE Port A outputs 1-32 are reserved for linking its buses to the MASTER.  Outputs 33-64 are user assignable to route other slave signals to channels or sockets on the Master. Inputs 1-64 are user assignable to patch outputs from the MASTER to the SLAVE if required.

SLAVE Port B is available for networking audio between systems, to other devices or for recording. It is not used for Dual-Rack combining.

 Note - Setting a SLAVE resets its parameters. If you want to keep the settings in the MixRack then archive a User Show before configuring it as a SLAVE. 

 

How to set up Dual-Rack:

Note - If you want to use Slave Port B for other audio networking check the Master Port B ACE Mode setting is correct for your application. Go to the Mix Rack Setup / Mixer Pref / Port A/B Setup screen and choose one of the three Port B Mode settings. These affect how many inputs are available from Slave Port B. A description is provided for each.

Note - A MixRack that is currently set as a Slave will not reboot as a Master.  If you are unable to change its status using the Dual MixRack Setup screen then reset its network settings to restore normal operation as a Master.

Note - A Show archived on a Dual-Rack system stores settings from both MixRacks.  If you re-use the Show on a single rack system and then re-archive it from that system, the SLAVE MixRack data will be lost.

 

For more information on the Dual-Rack feature and its system architecture please refer to the Allen & Heath web site.