I'm not even sure if there's an answer to this question but thought I'd have a go - this is the postal restriction on sending magnets, and as I'm about to try to rehome a hefty pair of loudspeaker drive units (10" / 150W) I'm wondering if they're likely to be way above, way below, or somewhere around this, I have absolutely no concept of how strong a field "0.418A/metre at a distance of 4.6 metres" is!
Anyone got any thoughts?
Cheers,
Andy