The Panasonic Passive Subwoofer SB-HW 370 in Black is a sleek and compact rectangular subwoofer designed for use with Panasonic speakers. With a 3 Ohms impedance and wired connectivity, this subwoofer delivers powerful bass for an enhanced home audio experience. Made from a combination of wood and plastic, this Panasonic subwoofer is a stylish and high-quality addition to your sound system. Perfect for those looking to improve the bass response in their living space, this subwoofer is a reliable choice for enhancing your home audio setup.