I honestly have no idea why.. I have 2 and the other is completely fine, hits fine, doesn't sound scratchy when pushed in, and seems to be perfect. They are both running at 1 ohm on a crescendo 2k so they are seeing about 100 watts each over rated but I really figured they could take that...
the surrounds are not rated..
the coil is...
You RIPPING a reinforced surrounds.. means, you put your fist through it.... not mechanical limit, or power........ you put your hand through it,...with a drill when you where mounting them.
IMHO