Surround-sound subwoofer (part 1)

Most surroundsound installations use loudspeaker boxes of modest dimensions so as to avoid making them too obtrusive for the usual living room. The consequence of this is a limited bass response, whereas especially the low frequencies can provide impressive effects with a good surround-sound system. To counter this drawback, the bass response can be enhanced wit h a subwoofer described in this three-part article.