Hello.
I just got myself a set of B&O h9 3 gen.
Here comes a littlebit of strange question.
Connected them to tv with Bluetooth, and my Xbox froze a few times and it made a louder electrical brrrrrrrrrr noice, like it was stuckt on a audio file, repetitive fast sound.
Had only 50% volume since im about to burn them in first.
Im wondering if this type of sound can damage the speakers?
Many thanks for some feedback about this
Hi! Welcome to HFGF!
The type of sound is less of a concern than the level of the sound. I’m not aware of any particular sound in the audible frequency spectrum that will damage a headphone/speaker driver. All the driver is doing is vibrating back and forth and that’s what it’s supposed to do. If the sound was too loud for the driver to handle then you would also likely hear some of the mechanical problems the driver was having. I wouldn’t worry.
You can do it with a very loud pop, the speaker can exceed it’s exclusion limits and tear or strain.
It’t the reason you are supposed to turn on from the source and off from the speakers.
Older amps had a tendency to make a loud popping noise when powering on and off, and turning on the preamp, could send a massive spike through the power amp if it was already on.
It could in some extreme cases damage the speakers.
But generally you are unlikely to damage a speaker with a loud sound, unless your amp will put out a LOT more power than the maximum rated power of the speakers, and even then it would have to be really F-In loud.
Yes i see, the volume was not very loud, just regular volume level about 40-50% that one use when watching tv for example 
Hello, many thanks for the welcome!
Yes the volume was set to normal volume level that one use when one watch regular tv for example, about 40% sound level (not loud on the headset)
So if i understand it right no noices can risk damaging anything on moderate volume, only a very high volume can damage the speaker/drivers no matter what sound it have to give out from strange sources.
About the mechanical sound, did you mean the speakers would take damage from extremly loud volume, and then one can hear a mechanical sound?
Or did you ment a mechanic sound can cause issue?
The sound that showed up when the Xbox froze was like brrrrrrr very mechanic type of sound, like the Xbox had sound issue when it froze and it made a very strange vibration sound.
Since i was running/burning in my new headphones i had lower volume, but it still sounded like some mechanical driver issues from the soundcard in the console.
Yes, that’s what I meant. If a speaker/headphone driver is pushed too hard it can break its pistonic motion and flutter. When it does the driver will no longer move straight back and forth but will distort in shape. Crinkling and popping sounds can often be heard when that happens. These would be sounds that aren’t in the signal but are the sounds of driver stress. As long as you’re not hearing any of that the volume level is low enough you don’t need to worry.
Thanks for clearing things up for me
Good to know that only high volume can make it happen. So next time my Xbox having issues i would always be carefull to not play too loud on it. Since this sound is higher then regular sound from games and music.
Rereading your og post I see they’re BT headphones. I’d say it’s virtually impossible for the internal amp to put out enough power to pop a driver. If they were wired headphones connected to a speaker amp, that’s a different story.