One of my Event 20/20 bas speakers has a rattle, worse at low frequencies and/or moderate volume. I don’t know why I tried this, but when press my finger directly on the speaker at about 3 o’clock, the rattle dissipates. If I press any other spot 6 o’clock, 12 o’clock etc, the rattle continues – only pressing at 3 o’clock does it stop. Does this sound like a loose component or a damaged speaker or?? Thanks