Technology / Home Audio / Subwoofer: A speaker specially designed to reproduce a range of very low frequencies only (the bass). The typical range for a subwoofer is about 20-200 Hz. A 'powered subwoofer' includes a built-in amplifier to drive the speaker.

Subwoofer Preamp Outputs

Technology / Home Audio / Subwoofer Preamp Outputs: Individual number of RCA outputs that are coupled with a built-in low-pass crossover for connection to a dedicated subwoofer amplifier. MORE

Woofer (Subwoofer)

Technology / Home Audio / Woofer (Subwoofer): The bass and lower midrange sounds are reproduced by the woofer. To operate efficiently, a woofer's cone should be made of material that is stiff, yet lightweight. Cones made of polymers, polypropylen MORE


Entertainment / Bowling / Crossover: A ball thrown on the first shot that misses your pocket and hits either on the wrong pocket or even misses farther to the wrong pocket side. MORE

Lfe Input

Technology / Home Audio / Lfe Input: Found on some powered subwoofers, this special preamp-level input accepts the 'Low Frequency Effects' signal that's output by digital 5.1-, 6.1-, or 7.1-channel home theater receivers, ensuring proper MORE

Dolby Digital

Technology / Home Audio / Dolby Digital: Dolby's name for its format for the digital soundtrack system for motion picture playback. Utilizes their AC-3 method of digital compression. The signal is optically printed between the sprocket holes MORE


Technology / Home Audio / Ac-3: (audio coding 3) Dolby's digital audio data compression algorithm adopted for HDTV transmission and used in dvds, laserdiscs and cds for 5.1 multichannel home theater use and automotive surround appli MORE