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2. 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

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. Passive radiator (speaker) - Wikipedia

   en.wikipedia.org/wiki/Passive_radiator_(speaker)

   The middle speaker is a real loudspeaker. The top and bottom cones are passive radiators. In the same way as a ported loudspeaker, a passive radiator system uses the sound pressure otherwise trapped in the enclosure to excite a resonance that makes it easier for the speaker system to create the deepest pitches (e.g., basslines). The passive ...

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 This "code" is one of many innocuous sounding secret codes that stores use to alert employees to problems without distracting you from shopping.

6. The best deals this week at Walmart - AOL

   www.aol.com/lifestyle/walmart-sale-apple-airpods...

   The days may not be getting hotter yet, but Walmart's deals definitely are! Ready to save big? Right now you can snag a Shark vac for less than $100, a 50-inch smart TV for only $198 (down from ...

7. 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.