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Method of customizing speaker for hearing protection earcup

  • US 10,136,211 B2
  • Filed: 12/17/2014
  • Issued: 11/20/2018
  • Est. Priority Date: 12/17/2014
  • Status: Active Grant
First Claim
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1. A method comprising:

  • selecting an amplifier with a maximum output;

    selecting a speaker with respect to tile selected amplifier, wherein the combination of the speaker and the selected amplifier maximum output provides a maximum speaker output which is precisely limited to a desired cap level without undershooting the desired cap level;

    electrically coupling the amplifier directly to the speaker; and

    placing the speaker and the amplifier in a hearing protection earcup, wherein the earcup provides a range of 20-30 noise reduction rating (NRR) and has between 100,000 to 300,000 cubic millimeters of air space volume behind the speaker, wherein the air space volume behind the speaker is configured to ensure effective passive NRR.

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