Could be, didn't get my first good set of speakers until I was in high school in the early 70s :) At least I don't remember seeing the 8 screw thing much before the SVS speakers.... There are still a number of tweeters that are like that. Look at the tweeter in the AA / BR-1 And my GR "Fisheye" tweeters that have a dome that looks pretty similar to those, but with an interesting waveguide.