This subwoofer incorporates a number of Yamaha's advanced and a high performance bass technologies such as Twisted Flare Port and Advanced YST II (Yamaha Active Servo Technology II) with discrete amp circuitry and high quality 25 cm (10") woofer unit. This results in sensational bass response that adds significantly to overall listening enjoyment of music and movies.

• New Twisted Flare Port contributes to clear and tight bass
• Advanced YST II (Yamaha Active Servo Technology II)
• 25 cm (10") cone woofer
• Stylish addition to any room New Twisted Flare Port Produces Clear and Tight Bass The all-new Twisted Flare Port takes advantage of extensive subwoofer development experience. The flared, gently twisting shape diffuses the vortex of air generated around the edge of the port, creating a smooth flow of air. This reduces extraneous noise not present in the original input signal and provides clear, accurate low frequency reproduction. From special effect sounds in movies to the atmosphere of a live venue, you hear bass that is clear, tight and realistic. Twisted Flare Port Movie Subwoofer Driver Dynamic Power Output Power Frequency Response Advanced YST Twisted Flare Port Dimensions (W x H x D) Weight NS-SW100 Subwoofer Driver 25 cm (10") cone Dynamic Power 100 W (5 ohms) Output Power 50 W (100 Hz, 5 ohms, 10% THD) Frequency Response 25-180 Hz Advanced YST Yes Twisted Flare Port Yes Dimensions (W x H x D) 351 x 352 x 408 mm; 13-7/8" x 13-7/8" x 16-1/8" Weight 12 kg; 26.5 lbs. Advanced YST II for Awesome Deep Bass Developed by Yamaha, the Advanced YST II (Yamaha Active Servo Technology II) combines negative-impedance and constant-current principles to drive the speaker cone with even tighter control than the previous version. Using Advanced Negative Impedance Converter (ANIC) circuits, this system dynamically optimizes effective speaker impedance to maintain excellent linearity. This means more stable and accurate low range response, not to mention higher sound quality. Stylish Addition to Any...