I was looking for exactly this kind of clarification — thank you so much!

Did you program each of the sources using the USB port and the Meridian Configuration Program?

In the software, is it possible to choose a startup input? That way, I wouldn’t need an RS232 controller, right?

Could using a USB phone charger degrade the sound quality? If so, do you have any other suggestions? I only have a pair of M speakers with SpeakerLink (M6).

Cheers!