High Frequency Oscillation hurt resistors in Magico A5 crossovers


Hi,I am looking for help understanding how HFO could blow crossover resistors in Magico A5 speakers. Equipment playing at the time of the incident is as follows...
Magico A5 speakersHegel H30 mono blocksHegel P30 preamp (lt and rt inputs on the Aux inputs from the laptop and Dragonfly Cobalt)
Dell laptopAudioquest Dragonfly CobaltAmazon Hi-res streaming
I was listening to Amazon music at a very moderate level when the application said there was an update available.I instinctively clicked accept while music was paying. It was only off for a few seconds to update and when complete and I restarted music the A5 tweeters were not on. These happened simultaneously and there was no audible noise what so ever indicating a potential issue. After multiple source tests and tweeter test, I was certain the tweeters were fine and it was an electronic issue. The cross overs were removed and sent to Magico and that was when I was told that HFO blew the resistors.
Can anyone explain how/why this happened so I can ideally avoid it happening again?
Thank you!
howaanders8
That's monitor audio platinum Gen 2
RF oscillation is independent of the actual music, if any.  Once it starts it's a runaway, self maintaining process. Unless you have a scope on the speaker terminals you'll never know it's happening.
@havocman
You should have bought the monitor audio
The monitor audio plastic tweeter diaphragm would melt like a candle, LOL
Do you live near area 51 ?
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