• 8-inch subwoofer
• 250-Watt integrated PWM amplifier
• Advanced Yamaha Active Servo Technology for deep, powerful bass
• Yamaha QD-Bass technology reduces environmental distortion
• Continuously variable high-cut filter

Product Description
Yamaha YST-SW215PN 8″ Powered Subwoofer, Piano Black FinishAmazon.com Product Description
With 250 Watts of power and a multitude of features, the Yamaha YST-SW215 will bring room shaking cinema action into your home. Advanced YST-II and QD-Bass technologies give this subwoofer deep bass without sacrificing clarity and accuracy. The continuously variable high-cut filter lets you match the subwoofer’s output to your other speakers and to room acoustics. A convenient Bass Action Selector System allows you to further tailor the output for video or music sources…. More >>
Yamaha YST-SW215PN 8″ Powered Subwoofer

• Box Content – Acoustimass module, Two satellite speakers, Control pod, Mounting brackets
• Tiny satellite speakers Lifelike, spacious sound for computer audio sources
• Dual inputs to enjoy two audio sources simultaneously, one to your computer and the other to an iPod or portable audio device
• Control pod Intuitive and convenient, houses volume control, headphone jack and connection for a second audio source such as an MP3 player
• Proprietary TrueSpace stereo signal processing circuitry

Product Description
The Companion 3 Series II multimedia speaker system delivers top of the line stereo performance from all your computer entertainment. Enjoy striking clarity and depth from MP3, CD and streaming music sources – plus podcasts, DVDs and games. Updated 3-piece design features two desktop speakers with stands and a hideaway Acoustimass module. Chances are your computer is already a primary source of music and other entertainment. But you may be settling for so-so sound, especially if you’re still using original equipment speakers. Companion 3 speakers are designed to upgrade your listening experience with a richness of sound that may surprise you. It starts with two stereo speakers with matching stands for superb performance and added desktop space. The small speakers deliver crisp highs for lifelike vocals and instruments. The compact Acoustimass module handles lower notes and effects with resounding depth and fullness – yet hides easily under your desk. Bose … More >>
Bose Companion 3 Series II multimedia speaker system