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  2. Acoustic suspension - Wikipedia

    en.wikipedia.org/wiki/Acoustic_suspension

    The ported cabinet demonstrates increased bass output in the 50–100 Hz range. On the right is a simulation of the low-frequency response of a typical 5" mid-woofer, the FaitalPRO 5FE120 [8] mid-woofer generated, obtained using WinISD, [9] for ideal sealed (yellow) and ported (cyan) enclosure configurations. The ported version adds about an ...

  3. Transmission line loudspeaker - Wikipedia

    en.wikipedia.org/wiki/Transmission_line_loudspeaker

    A loudspeaker enclosure based on the concept was proposed in October 1965 by Dr A.R. Bailey in Wireless World magazine, referencing a production version of an acoustic-line enclosure design from Radford Electronics Ltd. [16] The article postulated that energy from the rear of a driver unit could be essentially absorbed, without damping the cone ...

  4. Loudspeaker enclosure - Wikipedia

    en.wikipedia.org/wiki/Loudspeaker_enclosure

    This enclosure type is very common, and provides more sound pressure level near the tuning frequency than a sealed enclosure of the same volume, although it actually has less low frequency output at frequencies well below the cut-off frequency, since the rolloff is steeper (24 dB/octave versus 12 dB/octave for a sealed enclosure).

  5. Bass reflex - Wikipedia

    en.wikipedia.org/wiki/Bass_reflex

    Bass reflex enclosure schematic (cross-section). RCA bass reflex shelf stereo speakers.. A bass reflex system (also known as a ported, vented box or reflex port) is a type of loudspeaker enclosure that uses a port (hole) or vent cut into the cabinet and a section of tubing or pipe affixed to the port.

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    Old Navy's Break a Sweat Sale has activewear from $2 — shop our top picks here. AOL. AOL reviewed: This smart humidifier helps me sleep better in the dry winter months. See all deals. In Other News.

  7. Women are being notified that they need to take action if ...

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    It is a small price to pay for the chance to find cancer at the earliest stage possible." Dense breasts are extremely common, and women are already being notified if they have them—now they need ...

  8. Woman, 75, Escapes Kidnapper Only to Learn Boyfriend, 67, Has ...

    www.aol.com/woman-75-escapes-kidnapper-only...

    A man has been arrested in connection with the kidnapping of a 75-year-old woman in Pearce, Arizona on Friday, Jan 3. According to a press release from Cochise County Sheriff's Office, the woman ...

  9. Passive radiator (speaker) - Wikipedia

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

    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 radiator resonates at a frequency determined by its mass and the springiness (compliance) of ...

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