Plasma/Flame Speakers

In much the same way that a conventional speaker uses a magnetic field to push a driver, plasma speakers (sometimes called flame speakers) use electricity to move the surrounding air, projecting sound directly from their discharge. In the videos above sound is being produced completely from tesla coils, there are no conventional speakers in use. Eastern Voltage Research appears to have instructions and tools for building something like this yourself.

VIDEOS [videos above] (YouTube)

LINK/MEDIA [Eastern Voltage Research]

ARTICLE [plasma speakers] (WIkipedia)