Robster33
Well-known member
You just got two lemons then....
Speakers vibrate by nature, otherwise they couldn't work. You are just speaking about a light and thin rear case resonating. That's not a defect, since sound doesn't distort in any way.
You're defence is a bit late it's been a know problem for 2 years lol.
https://discussions.apple.com/thread/6629452?tstart=0
iPad - iPad Air 2 sound vibrating! | MacRumors Forums