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Test Your Knowledge of Audio Equalizers

True or false: An audio equalizer is so-named because it's intended to ?equalize? the output relative to the input of a circuit. If you think you know, take our test.

  • An audio equalizer is so-named because it's intended to “equalize” the output relative to the input of a circuit.
  • The first variable equalizers were used by Bell Labs in early telephone systems.
  • One of the inventors of the first 1/3-octave variable equalizers was Syn-Aud-Con founder Don Davis.
  • Passive equalizers always reduce overall signal level, even when “boosting” specific frequencies.


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