NEXT BIG THING
ELECTROSTATIC SPEAKERS
WORDS: PAUL HORRELL
CAR HI-FI SPEAKERS ARE HEAVY, bulky and wasteful of power. Packaging the speakers in the doors or dash is a headache. So is getting rid of the heat they generate.
Now imagine a speaker that isn’t a cone, but a simple ultralight thin film. Instead of that heavy cone with its attached magnet vibrating back and forth, the whole film vibrates under electrostatic force that changes at the frequency of the music.