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2. Anker Innovations - Wikipedia

   en.wikipedia.org/wiki/Anker_Innovations

   Anker Innovations Co., Ltd, [a] commonly known as Anker, [b] is a Chinese electronics manufacturer based in Changsha, Hunan, China.The company's product range includes phone chargers, power banks, earbuds, headphones, speakers, data hubs, 3D printers, charging cables, torches (flashlights), and screen protectors, among other products.

3. Isobaric loudspeaker - Wikipedia

   en.wikipedia.org/wiki/Isobaric_loudspeaker

   One driver will be pressurising the air in the listening room, while the other is pressurising a smaller volume of air in the speaker cabinet. The two drivers operating in tandem exhibit similar behavior as one loudspeaker in twice the cabinet. The cabinet is defined as the space behind the rear driver.

4. Electrical characteristics of dynamic loudspeakers - Wikipedia

   en.wikipedia.org/wiki/Electrical_characteristics...

   This frequency is known as the free-space resonance of the loudspeaker and is designated by F s. At this frequency, the voice coil is vibrating in the speaker's magnetic field with maximum peak-to-peak amplitude and velocity. The back EMF generated by this movement is also at its maximum. The electrical impedance of the speaker varies with the ...

5. Loudspeaker enclosure - Wikipedia

   en.wikipedia.org/wiki/Loudspeaker_enclosure

   MTX Audio loudspeaker enclosures (with rear panel reflex port tubes) which can mount 15-inch woofers, mid-range drivers and horn and/or compression tweeters. In this photo, only one driver is mounted. A cabinet with loudspeakers mounted in the holes. Number 1 is a mid-range driver. Number 2 is a high-range driver.

6. Loudspeaker measurement - Wikipedia

   en.wikipedia.org/wiki/Loudspeaker_measurement

   Digging a hole and burying the speaker flush with the ground allows far more accurate half-space measurement, creating the loudspeaker equivalent of the boundary effect microphone (all reflections precisely in-phase) but any rear port must remain unblocked, and any rear-mounted amplifier must be allowed cooling air. Diffraction from the edges ...

7. Soundbar - Wikipedia

   en.wikipedia.org/wiki/Soundbar

   It was a powered speaker system that offered stereo, Dolby Pro-Logic and AC3 surround sound from the soundbar and a separate subwoofer. The soundbar contained four 3-inch full range drivers and two 1-inch tweeters while the subwoofer housed one 8-inch dual voice coil driver.