I used to live by an airport. I no longer even notice planes but the noise used to make guests jump...
As to the heating of the tweeter, I would point out that Axiom tweeters are metal. Metal does not expand much until it reaches VERY high temperatures. We're talking 3000 degrees (F, I'm American and that's the way me likes it) to melt titanium. We're talking 1500 degrees before it reaches a 1:1 bend to thickness and it has a springback angle of 15 to 25 degrees. In otherwords, you have to heat it up to temperatures that would burn the wood case around it and you'd have to bend it more than 25 degrees before it would stay deformed.
I'm not seeing the magnetic field in a speaker doing that...
Source:
http://www.timet.com/fab-p24.htm
