Imac 2019, volume too low

The volume of my iMac Retina 5K, 2019 is really low.

I tried to go into my "system preferences" under "sound", when I select "built-in" the sound comes back a lot louder but only for 1 or 2 seconds, and then becomes real low again...

My Current IOS is BigSur 11.3.1.

What do you suggest?

Thanks. Matt

iMac 27″, macOS 10.13

Posted on May 28, 2021 01:24 PM

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Posted on May 28, 2021 01:27 PM

Restart in Safe Mode, then restart normally and retest. Please click Safe Mode Reset instructions and allow up to 10 minutes for the computer to restart in Safe Mode.

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Imac 2019, volume too low

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