12-16-2008 Post does not mapped to Knowledge Tree CO Posts 37 Joined on 11-18-2005 Post #: 1 Post ID: 9178 Reply to: 9178 New nanotube speaker technology fiogf49gjkf0d Works by heating the air. Similar in function to plasma tweeters. Could be promising for midband i think. Might be too slow in cooling in high frequencies. Its not linear though. Needs to be equalised... http://www.engadget.com/2008/11/04/carbon-nanotubes-could-be-used-in-film-like-flat-speakers/