Quiet speaker

I was sitting at my computer tonight when I heard a loud bang and crash from the other side of the room. One of my B&W speakers had fallen right down off the wall together with the bracket holding it. Fortunately, no damage was done. I bought these speakers in 1986 when I received a bit of money from editing a book.  They're still perfectly good, but they're very heavy, having been manufactured before the new rare-earth magnets allowed speakers to be smaller and lighter. I've taken the other one down now - it probably would have caused damage if it had fallen.