Your dad is a flight of stairs away so he's your best bet. If he incinerates himself, I can help (not him...you).

The safest way for product and humans is to shut the ADAs off, unplug the cables at the speakers and check Ohms at the driver terminals. Mids and tweeters should be 6 to 8 Ohms. It's highly unlikely drivers are the problem.

Then you can play some music and check for AC voltage at the outputs of the DSP. That's low voltage that won't even vaporize a gnat's 'nads.

First thing I'd do though is shut everything down via the rocker switches and see if the problem clears.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated