Subwoofers come in a variety of sizes and shapes. The most common type is an unpowered, component subwoofer. This subwoofer lacks a built-in amplifier as a power source, so you will need to hook it to an external amp to draw current. (Some subs have built-in power supplies. See page 3). Also, while some subwoofers can be used without a separate box in space-saving free-air installations, most require a strong enclosure to operate properly.
The most basic element of component subwoofer installation is a snap. Mount your component subwoofer to an appropriate enclosure by connecting the leads to the terminal cup, and using mounting screws. It shouldn't take more than a few minutes. You'll then run the wiring to a nearby amplifier. You'll have choices of how you wire your sub. You can wire in parallel for maximum output, or series for a higher-impedance, multiple woofer setup.
