Variable impendance and power type loudspeaker

Variable impendance and power type loudspeaker

  • CN 1,812,647 A
  • Filed: 12/29/2005
  • Published: 08/02/2006
  • Est. Priority Date: 12/29/2005
  • Status: Active Application
First Claim
Patent Images

1. , a kind of impedance and power variable formula loud speaker are made up of vibrating membrane, vibrating membrane fixed support, ferromagnetism alloy permanent magnet, hollow magnetic core and double winding moving-coil.

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