Lound speaker with double magnetic pole and moving coil and its playing and controlling circuit

Lound speaker with double magnetic pole and moving coil and its playing and controlling circuit

  • CN 1,819,716 A
  • Filed: 12/29/2005
  • Published: 08/16/2006
  • Est. Priority Date: 12/29/2005
  • Status: Active Application
First Claim
Patent Images

1. , a kind of double-moving coil double-magnetic pole loudspeaker is 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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