> I'm not sure why I had a 2x2x1" neodymium magnet laying around, but I'm glad I did.

The same reason why there's beer in the fridge, condoms in the night stand and a guitar pick in your pocket: just in case.

Ha. I did exactly the same thing with a dryer years ago but with a neodymium magnet from a hard drive head actuator.

It is interesting that with the neodymium magnets being rare earth materials and apparent limits being placed on their mining/import/export etc., the price of them has sky-rocketed. There was a time when all the bass cabinets for bass players were getting smaller and smaller and lighter and lighter thanks to these magnets because it meant you could have a smaller speaker driver (hence less weight) but now they're having to resort to the heavier speakers again.

A shame really! I never did buy any light cabinets but always wish I had! At least Class D amplifiers are doing the rounds and so massive wattage amplifiers are now tiny and lightweight.