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Subwoofer facts for kids

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Subwoofer
Subwoofer

Subwoofer is a type of loudspeaker that is designed to produce low frequencies, example 20 - 200 Hz. Usually subwoofers are quite big and heavy. Humans can not typically hear frequencies below 20 Hz. In some cases, with enough sound pressure, the listener will not hear the sound but will be able to feel it.

Images for kids

  • Bravox E2k

    12" (30cm) subwoofer driver. A driver is commonly installed in an enclosure (often a wooden cabinet) to prevent the sound waves coming off the back to cancel out the sound waves being generated from the front of the subwoofer.

  • Infinity Servo Statik subwoofer

    View of the underside of the downward-firing Infinity Servo Statik 1, showing the size of the 18-inch (45cm) custom-wound Cerwin Vega driver in relation to a can of Diet Coke, to show scale.

  • Gene Czerwinski at AES Convention

    A display of Cerwin-Vega speaker enclosures at the 1975 Audio Engineering Society meeting.

  • Subwoofer cab internal bracing

    Heavily braced and built subwoofer enclosure.

  • Final12hw6

    A large subwoofer cabinet used in a home hi-fi system.

  • Aktives Subwoofer Modul

    This picture of the internal components of an active (powered) subwoofer shows the circuitry for the power amplifier.

  • Final05jm1

    This rear panel of a powered subwoofer shows the heat sinksused to cool the power amplifier.

  • Rear panel of a Polk audio sub-woofer

    This picture of the rear panel of a Polk subwoofer cabinet shows a low-pass filter adjustment knob.

  • Subwoofer downfiring

    The rear panel of a down-firing, active subwoofer cabinet.

  • Bose Acoustimass 5 Series 1

    The 1987 Bose Acoustimass 5 stereo bass driver contained one six-inch (152 mm) driver per channel and provided crossover filtering for its two cube speaker arrays

  • Tracer speaker and subwoofer

    A small subwoofer cabinet designed for use with a home computer.

  • Multiple subwoofers in a car hatchback

    Multiple subwoofers in a car hatchback

  • Loudspeaker enclosure

    A homemade car audio subwoofer speaker box with a 15-inch Boss Audio subwoofer and an empty space for a second driver

  • EAW KF850s + SB1000s (Blacklight Party)

    Each stack of speakers in this sound reinforcement setup consists of two EAW SB1000 slanted baffle subwoofers (each contains two 18" drivers) and two EAW KF850 full range cabinets for the mid and high frequencies.

  • Caissons grave DSC 5563EC

    A row of subwoofer cabinets in front of the stage of a rock concert. One enclosure out of every three is turned backward to make a cardioid output pattern.

  • CODA Audio LA5A-SUB & LA4A-SUB (Prolight + Sound 2007)

    Large subwoofer enclosures.

  • Cardioid Subwoofers

    Cardioid dispersion pattern of two end-fire subwoofers placed one in front of the other. The signal feeding the enclosure nearest the listener is delayed by a few milliseconds.

  • Cardioid Subwoofer Array

    CSA: Six subwoofers arranged for less bass energy on stage. Signal going to the reversed enclosures is delayed a few milliseconds.

  • End-fire Subwoofer Array

    End-fire array using three rows of subwoofers. Each row is delayed a few milliseconds more than the previous row.

  • Bass reflex spk

    Bass reflex enclosure schematic (cross-section).

See also

Kids robot.svg In Spanish: Subwoofer para niños

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