Off topic but interesting?? Magnetics

Well, as a lifelong Audio Geek and recently Chief Engineer at MGM Studios, I can tell you that A) I have shipped hundreds, if not thousands of speakers all over the world. I have never, once, been asked to provide a specific magnetic leakage figure. I have been required to state what's in the box, but not always... and B) I have never, ever, had anythng other than hateful bad luck with DHL... I personally would refuse to ship if DHL was the only method. YMMV, but why risk it? If you are shipping two similar speakers, place them facing each other flange to flange and bolt them together with four bolts (or more).. this provides the best strength and protection possible. Then try and pack them so they are supported by the rims and not the magnet structures. This will minimize the leakage flux. Mark the box (and the commercial invoice "Electrical Transducer" and then call FedEx or UPS or even the USPS 'Global Priority' service... but forget DHL. And don't bother mentioning 'raw speakers'. ALSO: Aircraft compasses are generally of the flux-gate or flux-ring variety, and use a counter-revolving pattern of light to measure the fields, and are much less susceptible to stray fields than the ancient magnetic compasses, which some planes still have, but only use as a secondary nav instrument. Chris Kennedy can give this chapter and verse, but it's WAY off topic. Shipping magnetized material (big disk drives, media, etc) is more "on" IMHO> Don't Use DHL! YukPoo! Icky Bad! No! Noooo! Cheers John