plasma speaker 2009
I seem to remember that many years ago Quad use to make a full range speaker with that incorporated. I think the technology is only suitable for the high frequency end though. I had a friend that had a pair of these, huge curved things, rather like the back of a cane chair. By the smell coming off them, I guess they generated a fair amount of ozone, not a good thing at all. I am presuming that this and other safety issues were the reason they dropped them. Sounds like a great idea to have a speaker with no mass or resonance. Probably not a great road to go down though.