It could have been a tweeter, there's always a sunny side.
When I was showing a family around my house for a hopeful sale the young daughter walked straight up to my SA1s and put both hands on them. Somehow a strange magnetism. My heart rate went up but she stepped away. The mother then swung around, knocking the speaker into a rocking motion on the stands...left, right, left, right...thank God they didn't fall over. I really owe Blue Tak for that one, much better than insurance.......