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  2. Subwoofer - Wikipedia

    en.wikipedia.org/wiki/Subwoofer

    The subwoofer phase control found on many subwoofer amplifiers is actually a polarity inversion switch. [68] It allows users to reverse the polarity of the subwoofer relative to the audio signal it is being given. This type of control allows the subwoofer to either be in phase with the source signal, or 180 degrees out of phase.

  3. Damping factor - Wikipedia

    en.wikipedia.org/wiki/Damping_factor

    The E-202 has a Speaker Damping Control which permits choice of three damping factors and induces maximum potential performance from any speaker. Damping factor with an 8 Ω load becomes more than 50 when this control is set to NORMAL. Likewise, it is 5 at MEDIUM position, and 1 at SOFT position. It enables choosing the speaker sound that one ...

  4. Excursion (audio) - Wikipedia

    en.wikipedia.org/wiki/Excursion_(audio)

    The MTX Jackhammer, a 22-inch subwoofer made by MTX Audio, is capable of 2.5 inches of linear cone excursion, one way. That is a total range of 5 inches, which is potentially hazardous. The Thunder 1000000, the record holder for the largest subwoofer ever made, with a diameter of 60 inches, is capable of 6 inches of peak to peak cone excursion.

  5. Media control symbols - Wikipedia

    en.wikipedia.org/wiki/Media_control_symbols

    To identify the control or the indicator to play the next part and then stop. Record: U+23FA ⏺ #5547 Recording, general: To identify a control to preset or start a recording mode. Eject U+23CF ⏏ #5459 Eject: To identify the control for the eject function. Shuffle U+1F500 🔀 — To randomly play a song from a given list.

  6. Rotary woofer - Wikipedia

    en.wikipedia.org/wiki/Rotary_woofer

    A rotary woofer is a subwoofer-style loudspeaker which reproduces very low frequency content by using a conventional speaker voice coil's motion to change the pitch (angle) of the blades of an impeller rotating at a constant speed. The pitch of the fan blades is controlled by the audio signal presented to the voice coil, and is able to swing ...

  7. Surround sound - Wikipedia

    en.wikipedia.org/wiki/Surround_sound

    Before the bass management system, there is a LFE channel. After the bass management system, there is a subwoofer signal. A common misunderstanding is the belief that the LFE channel is the subwoofer channel. The bass management system may direct bass to one or more subwoofers (if present) from any channel, not just from the LFE channel. Also ...

  8. Equalization (audio) - Wikipedia

    en.wikipedia.org/wiki/Equalization_(audio)

    A crossover network is a system of filters designed to direct electrical energy separately to the woofer and tweeter of a 2-way speaker system (and also to the mid-range speaker of a 3-way system). This is most often built into the speaker enclosure and hidden from the user.

  9. List of Bose home audio products - Wikipedia

    en.wikipedia.org/wiki/List_of_Bose_home_audio...

    The "2201" was released in 1966 and was Bose's first speaker system. [20] It consisted of 22 five-inch drivers and was designed to be located in the corner of a room, using reflections off the walls and floor to disperse the sound. [21] The system included tone controls and a switch to attenuate frequencies below 50 Hz.