Legacy Audio Whisper loudspeaker
More than any other component, it is the loudspeaker that seems to invite the most audacious—some would say flat-out lunatic—efforts at design. There have been attempts at full-range plasma speakers, speakers one had to hook up to tanks of pressurized gas, speakers with drivers attached to what looked like copper salad bowls (the infamous Tri-Torr of the early 1990s).