Marine Radios Review

A subwoofer is a woofer, or a complete loudspeaker dedicated to the reproduction of bass audio frequencies, from perhaps 150 Hz down as far as 20 Hz, or in rare cases lower. 10 or 15 inch subwoofers, also known as “subs”, are used to augment the low frequency performance of main loudspeakers.

Subwoofers are constructed by mounting one or more woofers typically between 8″ and 21″ in diameter in a well-braced wood or plastic cabinet. Passive subwoofers have a subwoofer driver and enclosure; active subwoofers have a built-in amplifier. It used to be that subwoofers were only used in premium home sound systems, but today you can even find marine subwoofers.