Established in 1999, Dianmen Digital Technology Co., Ltd. is one of the leading China active speaker manufacturer and wholesaler of audio, video and communication products in China. We can offer you the complete OEM & ODM active speakers service, including, but not limited to, the products designing, moudling developing, the plastic injection and hardware producing, firmware designing and products producing. We have established an integrated set of QA system of efficiency, which strictly administrates through the whole process including design, manufacture, sales and service. All of key processes for quality control are performed according to ISO9001:2000, CE, FCC, E-MARK and RoHS. Also we collect and offer cool and the newest 2009/2010 fashion products to you.

High 100W dynamic power. 10 long-stroke cone driver with magnetic shielding. Front-firing active woofer. Selectable high-cut filter. 25-180Hz low frequency response. The 100-watt Yamaha YST-SW216BL subwoofer sets the standard for subwoofers in this class with high dynamic power and low-noise performance thanks to Advanced YST II, a Linear Port, front-firing design, plus many other sophisticated features. Advanced Yamaha Active Servo Technology (Advanced YST) is a unique system in which the speaker and amplifier work together to cancel out impedance so the speaker unit has a perfectly linear motion. Advanced YST helps to ensure the highest levels of sound pressure and overall performance. The YST-SW216BL Active Subwoofer sets the standard for subwoofers in this class with high dynamic power and low-noise performance thanks to Advanced YST II, a Linear Port, front-firing design, plus many other sophisticated features. Advanced YST II combines negative impedance and constant-current principles to drive the speaker cone with even tighter control than before. This system dynamically optimizes effective speaker impedance to maintain excellent linearity. This means more stable and accurate low range response for more natural and energetic bass reproduction.

Features: * Easy to carry, compact design * 500mW total power output * 39mm neodymium magnets provide clear sound * On/off switch and volume control * Magnetically sheilded * Uses 3 AAA batteries (not included) or AC power * Includes AC adapter. When it comes to creating high-quality Hi-Fi sound in your home, selecting the proper speakers is even more important. Sony makes it easy with an extremely wide range of different speakers. Whether you're listening to a refined string quartet or watching a powerful action-packed movie, Sony's speakers are designed to deliver an intensive acoustic experience that is both powerful and emotional. These Sony speakers feature 2W total output power, low distortion amplifier, floating speaker design with white cone, and 57mm free edge type unit. All these features come together to make one high quality pair of speakers.

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