I'm not sure if this is something that will bother me in the future. I am sensitive to sound and have misophonia, but I can't hear it unless I literally stick my ear on the keyboard. So this one is still TBD for me, though I appreciate your comment, as it made me check it out more closely.
I haven't noticed the audio issues, but there again, I have it using a USB DAC to a receiver with bookshelf speakers, so I really haven't used the speakers at all. And rarely would I--if I'm out and about with it, I have noise-cancelling headphones I take everywhere.
In my on-going saga with this XPS 15 the space bar has now developed a wobble and is not picking up presses except directly in the centre of the spacebar.
I have had enough of this thing. I can't wait to return it.
Have you had any issues with your 9570?