Adding another 220 Pro to make 440 Pro

[sfdude]

You can enable two remotes in the configurator. I keep one next to my listening position and the other next to the Expert Pros. Works great.

Yup, I intend to have a remote near the units and another one on the couch with me.

As @daniel.avasilichioaei noted, you'll need 1 SD card configured for master, and another for slave. Easy enough to do from the configurator. But note, there is a known bug with the configurator for dual mono setups that creates problems when you re-edit an existing configuration. It has been reported and acknowledged, but no fix in site as far as I know. So you just need to remember to configure from scratch each time. A pain when you have to do it, but hopefully you won't need to reconfigure very often.

This is good to know. Will make sure to configure from scratch every time a change is needed.

1) Yes, but you need only one.
2) Two different configuration files, one for each unit.

Thanks! I see the option to download cfg files next to each of the units in the Devialet configurator so will keep that in mind.

Thanks for the responses!