There's the words I wanted. Thanks.

Also bear in mind the speakers themselves have higher distortion factors than the amps. And I think that's just physics. You can swing an electrical signal far quicker than moving the mass of a speaker cone.

Surely many of these systems have a terrestrial backup.

Question: If all the current satellites were destroyed at once. What would that change tomorrow? Some things I can think of: -GPS/GNSS. -Weather measurements. -Sat TV / news. -Some comms.

I am just thinking that it wasn't that long ago that we didn't have any of that, and we still managed two world wars just fine.

Alternatives to these are: -Knowing where you are/someone else is. -terrestrial weather measurement. -Short wave radio.

So an eastern nation?