NS-SW200A design combining superior operability and beauty. And introducing a new technology, Twisted Flare Port, for clear and tight bass. A subwoofer that will match a wide range of speakers and interiors.PWM digital drive high efficiency amplifier and dual feedback circuitNew Twisted Flare Port contributes to clear and tight bassAdvanced YST II (Yamaha Active Servo Technology II)20 cm (8”) cone wooferBeautiful design will match a wide range of speakers and interiorsFront control panel for easy controlSystem control and Auto standbyNew Twisted Flare Port Produces Clear and Tight BassThe all-