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Question: Which of the following is the standard THX subwoofer crossover frequency?


  1.  70 Hz
  2.  80 Hz
  3.  90 Hz
  4.  100 Hz

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2. 80 Hz

The standard THX subwoofer crossover frequency is 80 Hz.

More information:

The 80Hz is best suited to

  • high enough to release the much-needed bass on midbass speakers, leading to the creation of "bookshelf"-sized speakers that fit well with the general impressions about the size of acceptable speakers;
  • is not so high that conventional bass drivers have a reaction problem due to inductance;
  • and low enough that the sub is still difficult to place in place.

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