Of course, you mean AT.

I typed my response, and had the edit screen open, when that information was posted. I didn't go back and look to see if someone had posted while I was editing.

Something named Acoustically Transparent is not acoustically transparent. Hell, air isn't acoustically transparent, though it's damn close. These screens are less opaque to sound than other screens, but in the end it's a marketing term and the actual behavior of the screen has to be investigated.

You can get an idea how much faith the screen maker has in this acoustical transparency if you ask if they'll take back a screen if it turns out not to be acoustically transparent enough. If they're good, that should start a dialog, but if they outright refuse to consider it, we should all be told!