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2. Voice coil - Wikipedia

   en.wikipedia.org/wiki/Voice_coil

   This magnetic field causes the voice coil to react to the magnetic field from a permanent magnet fixed to the speaker's frame, thereby moving the cone of the speaker. By applying an audio waveform to the voice coil, the cone will reproduce the sound pressure waves, corresponding to the original input signal.

3. Diaphragm (acoustics) - Wikipedia

   en.wikipedia.org/wiki/Diaphragm_(acoustics)

   The cone stiffness/damping plus the surround's linearity/damping play a crucial role in accuracy of the reproduced voice coil signal waveform. This is the crux of high-fidelity stereo. The surround may be resin-treated cloth, resin-treated non-wovens, polymeric foams, or thermoplastic elastomers over-molded onto the cone body.

4. Dust cap - Wikipedia

   en.wikipedia.org/wiki/Dust_cap

   Dust caps can also contribute structural integrity to the voice coil assembly or the cone. In some loudspeaker designs dust caps can also be part of the acoustic design of the driver by radiating high frequency energy or suppressing it. Typically the dust cap is made of the same material as the cone.

5. What 'secret' loudspeaker codes mean at department stores - AOL

   www.aol.com/news/2010-10-13-what-secret...

   Walmart security watches shoppers enter on Black Friday. If you've been shopping in a big box retail store you've probably heard an announcement on the loudspeaker such as, "code yellow toys, code ...

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   You can find the Carote cookware set shoppers love for 75% off right now during Walmart's extended Black Friday sale. ... Vilinice Bluetooth Speakers . $18 $100 Save $82. See at Walmart.

7. Loudspeaker enclosure - Wikipedia

   en.wikipedia.org/wiki/Loudspeaker_enclosure

   These speaker grilles are a metallic or cloth mesh that are used to protect the speaker by forming a protective cover over the speaker's cone while allowing sound to pass through undistorted. [3] Speaker enclosures are used in homes in stereo systems, home cinema systems, televisions, boom boxes and many other audio

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