Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Electrostatic Speakers

  1. Sep 21, 2004 #1
    Trying to understand some course material and I decided to look into electrostatic speakers. I can't seem to apply electrostatic theory formulaes to the speaker model.

    There are two stators and a diaphragm in the speaker, my current guess is that the two stators act like a capacitor and hence act like a infinite line of charge also as a parallel plate.
  2. jcsd
  3. Sep 22, 2004 #2
    Electrostatic speakers are indeed parallel plate copacitors with something soft in between the plates so they can move. The must take enough voltage to hurt.
  4. Sep 22, 2004 #3
    Electrostatic speakers, as a result of their high potential voltage, were often ruined over the years by cigarette smoke fouling what I believe you call stators (not unlike the action of eco-friendly "scrubbers" in high-tech chimneys). Their reproduction of heavy bass was problematic, I think because such a capacitive circuit tends toward greater efficiency at higher frequencies and shallow excursion of the diaphram.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Electrostatic Speakers
  1. Motionless speaker (Replies: 13)