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PWM digital amplifier and dual feedback circuit The twisted flare port provides a clear and powerful bass Advanced YST II (Yamaha Active Servo Technology II) 20 cm woofer Box contents: Yamaha NS-SW200 front firing subwoofer with patented twisted flare port bass reflex tube › See more product details; Product description Yamaha NS-SW200 Enlarge The new Twisted Flare Port provides a clear and powerful bass The all-new Twisted Flare Port bass reflex port is the result of Yamaha's many years of experience in developing acoustic technologies and excellent subwoofer. The fluted, slightly twisted shape dissolves air vortices at the edges of the opening and provides a significantly more harmonious air flow. This dampens noise that is not part of the original sound and ensures precise and accurate reproduction. From cinematic special effects to the typical atmosphere of exciting live broadcasts, the innovative technology always ensures crisp, dry and realistic bass response. PWM Digital Amplifier and Dual Feedback CircuitThe built-in amplifier delivers a stable, efficient output power of 250 W – at the same time reducing power consumption and heat generation. Since no filter coils are required, interference signal is drastically reduced. This results in a fast response of the subwoofer and thus a dynamic and fresh sound. Advanced YST II for an impressively deep bass. Yamaha's exclusive Advanced Active Servo Technology II (Advanced YSTII) tickles extreme powerful and crisp bass from small speaker housings. By utilizing negative impedance generation, Advanced YST II is the ideal process for combining amplifiers and subwoofers for maximum bass performance. The attractive design fits a wide range of speakers and facilities. The design of the subwoofer not only underlines the strength and stability of the bass (stable side panels), but also sets accents with its rounded front and blends elegantly into any interior. . The NS-SW200 is available in PianoWhite, Piano Black and Black. The front panel makes it easy to use. The \; Product description Yamaha NS-SW200 Enlarge The new Twisted Flare Port provides a clear and powerful bass The all-new Twisted Flare Port bass reflex port is the result of Yamaha's many years of experience in developing acoustic technologies and excellent subwoofer. The fluted, slightly twisted shape dissolves air vortices at the edges of the opening and provides a significantly more harmonious air flow. This dampens noise that is not part of the original sound and ensures precise and accurate reproduction. From cinematic special effects to the typical atmosphere of exciting live broadcasts, the innovative technology always ensures crisp, dry and realistic bass response. PWM Digital Amplifier and Dual Feedback CircuitThe built-in amplifier delivers a stable, efficient output power of 250 W – at the same time reducing power consumption and heat generation. Since no filter coils are required, interference signal is drastically reduced. This results in a fast response of the subwoofer and thus a dynamic and fresh sound. Advanced YST II for an impressively deep bass. Yamaha's exclusive Advanced Active Servo Technology II (Advanced YSTII) tickles extreme powerful and crisp bass from small speaker housings. By utilizing negative impedance generation, Advanced YST II is the ideal process for combining amplifiers and subwoofers for maximum bass performance. The attractive design fits a wide range of speakers and facilities. The design of the subwoofer not only underlines the strength and stability of the bass (stable side panels), but also sets accents with its rounded front and blends elegantly into any interior. . The NS-SW200 is available in PianoWhite, Piano Black and Black. The front panel makes it easy to use. The \; Yamaha NS-SW200 Enlarge The new Twisted Flare Port provides a clear and powerful bass The all-new Twisted Flare Port bass reflex port is the result of Yamaha's many years of experience in developing acoustic technologies and excellent subwoofer. The fluted, slightly twisted shape dissolves air vortices at the edges of the opening and provides a significantly more harmonious air flow. This dampens noise that is not part of the original sound and ensures precise and accurate reproduction. From cinematic special effects to the typical atmosphere of exciting live broadcasts, the innovative technology always ensures crisp, dry and realistic bass response. PWM Digital Amplifier and Dual Feedback CircuitThe built-in amplifier delivers a stable, efficient output power of 250 W – at the same time reducing power consumption and heat generation. Since no filter coils are required, interference signal is drastically reduced. This results in a fast response of the subwoofer and thus a dynamic and fresh sound. Advanced YST II for an impressively deep bass. Yamaha's exclusive Advanced Active Servo Technology II (Advanced YSTII) tickles extreme powerful and crisp bass from small speaker housings. By utilizing negative impedance generation, Advanced YST II is the ideal process for combining amplifiers and subwoofers for maximum bass performance. The attractive design fits a wide range of speakers and facilities. The design of the subwoofer not only underlines the strength and stability of the bass (stable side panels), but also sets accents with its rounded front and blends elegantly into any interior. . The NS-SW200 is available in PianoWhite, Piano Black and Black. The front panel makes it easy to use. The \