DESC: The speakers are designed to be moisture-resistant, with the woofers constructed of polypropylene and surrounded with Butyl rubber for durability. The paintable grill lets you adjust the speakers' appearance to your decor. The tweeters are treated with ferro fluid cooled voice coil for extended highs. With a power handling of 160 watts and a sensitivity of 90 dB, the ATc5 gives you quality and value, and is perfect for home theater use or for distributed sound.