VIZIO VSB210WS Universal HD Sound Bar with Wireless Subwoofer Four 3" High-Efficiency hand built mid/bass transducers Two 3/4" High Performance aluminum dome neodymium tweeters Subwoofer Frequency Response: 35Hz up to 80Hz 6.5" long throw (high excursion) driver Subwoofer placement anywhere within 60 ft of sound bar - clear line of sight Four 3" high-efficiency hand built mid/bass transducers Two 3/4" high performance aluminum dome neodymium tweeters Subwoofer frequency response of 35Hz up to 80Hz for high bass impact 6.5" long-throw (high excursion) driver Wireless subwoofer placement anywhere within 60 ft of sound bar