So during my recent 2B upgrade spree I used J-B Weld on the four MW magnets. It didn't occur to me before putting the stuff on that since one component of the epoxy is a steel slurry it interacted in an interesting way with the magnet. The magnet actually pulled the mixed epoxy off the applicator (not a lot, just a noticable amount) and seemed to make it want to flow over the edge of the magnets, so I had to be pretty careful about how much I was using.
Anyway, I know that J-B Weld is pretty much the approved solution for avoiding magnet shift and that it's not supposed to affect the sound at all, but I was wondering if putting a bunch of steel-bearing goop around the magnet could have any impact on the magnetic field the driver depends on?
I might go back and do this to the drivers in some Monitor 5Jr's I recently tweaked, and was also wondering if the Dayton USB Woofer tester sold by PE might be able to detect any before-and-after differences.
Has anyone tried doing a before-and-after test of the woofers using that gadget or know enough about it to know whether it would be worth trying?