Well done, another highly detailed and analytical description!
 
ps. There are holes on the side, although they're not directly connected to the driver as a vent I assume they have something to with pressure release(?)

Thank you buddy; well there are some kind of holes here, but it seems to have a closed shell to me.

Even, it has quite good isolation in my opinion. 

Thanks for the excellent review. I recently auditioned the AAW W350 and I really liked them. No W500 was avilable for trying unfortunately.

Thank you mate. Please share your impressions,  when you listen to it. 

Great review as usual. Keep'em coming!

Thank you buddy