The replacement mixing board arrived from Seattle this week.
(Mackie Onyx 24-4)
After the last one melted 5 minutes before showtime I took the precaution of setting the new one up in our kitchen and running it for 3 hours, then shutting it down for 30 minutes, then running it for another hour, etc until the beer was gone.
Used it tonight and there were zero issues and zero smoke.
Sounded different compared to all the Mackies I have used in the past, but that's to be expected and in no way was it's sound worse.
I just need to get used to the new mic preamps and EQs, then continue balancing the rest of our gear to it.
This picture of Bella has nothing whatsoever to do with the story.