subwoofer


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subwoofer

[′səb‚wu̇f·ər]
(engineering acoustics)
A loudspeaker designed to reproduce extremely low audio frequencies, extending into the infrasonic range, generally used in conjunction with a crossover network, a woofer, and a tweeter.

subwoofer

A speaker that reproduces the lower end of the audio spectrum. A subwoofer system typically includes a crossover circuit that filters frequencies around 100Hz and under to the driver. In a home theater, the placement of front, center and surround speakers is critical to the listener, but subwoofers are non-directional and can be located in a convenient spot, although corners are not recommended.

Passive and Active Subwoofers
Passive subwoofers contain only the speaker (the driver) and crossover. Active subwoofers are self powered and include their own amplifier. See woofer.
References in periodicals archive ?
The Subwoofer IPA concept was originally developed by the kitchen team in Liverpool, who launched a prototype beer for pups which proved extremely popular.
Passive sub requires a dedicated external amplifier, which in most cases is more expensive than the subwoofer itself.
Its dedicated presets allow KAN200s to serve as a flexible PA system -- either standalone or combined with K-array subwoofers. The KZ10 is a remarkable ultra-micro line array designed for discreet use in a variety of situations such as restaurants, bars, museums etc.
Perfect matching Subwoofer with optimised power handling.
The bass reflex subwoofer is 23-percent larger in volume than the two-way three speakers.
In his review of the Oppo DV-980H in the January 2008 issue of Stereophile, Kalman Robinson identified some AV receivers as incompatible when playing SACD discs over the HDMI link because the subwoofer (0.1) channel is inactive.
Audio aficionados will appreciate the eight built-in speakers arid the notebook's subwoofer. And with art external USB TV tuner, the XPS M 2010 becomes a television and digital recorder for video fans.
It is based on the individual acoustics of the Vantage's interior and uses a 700-watt amplifier with Dolby Pro Logic II home cinema technology and a new subwoofer to enhance bass performance.
Mr Lord pioneered a subwoofer which excited music fans in 44 countries with its quality of bass reproduction.
But as for me and my house we're content with the little Velodyne Digital Drive DD-10, which provides all the bass I want from the tiniest subwoofer cabinet.