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Consumer Electronics by S. P. Bali

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HIGH FREQUENCY LOUDSPEAKERS

There are two main types of high frequency speakers; the well-known tweeter and the more recent supertweeter. Supertweeters can be add-ons or they can be integral with the system. Six basic high-frequency speakers (tweeters) exist.

  1. The cone is a physically disincentive version of the woofer.
  2. The dome, so called because of its dome-shaped diaphragm.
  3. The horn, so named because it is a horn.
  4. The Heil air-motion transformer which uses the principle of lever in its operation, named after its inventor, Dr. Oskar Heil.
  5. High polymer molecular-film tweeter, uses the piezoelectric effect for its principle of operation (used exclusively by Pioneer).
  6. The electrostatic tweeter works on the principle of attraction or repulsion ...

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