A subwoofer (or sub) is a woofer, or a complete loudspeaker, which is dedicated to the reproduction of low-pitched audio frequencies known as bass. The typical frequency range for a subwoofer is about 20–60 Hz for consumer products, below 100 Hz for professional live sound, and below 80 Hz in THX-approved systems. Subwoofers are intended to augment the low frequency range of loudspeakers covering higher frequency bands.
Subwoofers are made up of one or more woofers mounted in a loudspeaker enclosure—often made of wood—capable of withstanding air pressure while resisting deformation. Subwoofer enclosures come in a variety of designs, including bass reflex (with a port or passive radiator in the enclosure), infinite baffle, horn-loaded, and bandpass designs, representing unique tradeoffs with respect to efficiency, bandwidth, size and cost. Passive subwoofers have a subwoofer driver and enclosure and they are powered by an external amplifier. Active subwoofers include a built-in amplifier.
LS10-44 10" Low Profile Subwoofer Dual 4 Ohm
At a depth of less than 3.8 inches, Dayton Audio's LS10-44 10" low profile subwoofer fits into shallow spaces that ordinary subs wouldn't dream of fitting! Dual 2.5" 4-ohm coils provide flexible wiring, while the flat cone and innovative suspension support 10mm of Xmax!
LS12-44 12" Low Profile Subwoofer Dual 4 Ohm
At a depth of only 4 inches, Dayton Audio's LS12-44 12" low profile subwoofer fits into shallow spaces that ordinary subs wouldn't dream of fitting! Dual 2.5" 4-ohm coils provide flexible wiring, while the flat cone and innovative suspension support 10mm of Xmax!