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.Exceptional Surround Sound This system can reproduce a frequency response of 28Hz – 50KHz. The dynamic range this speaker system is so well balanced and matched that the center, front and rear channels blend seamlessly.Magnetically Shielded Speakers prevent picture interference when placed near your TV or any other electronic display.General Features5.1-Channel entry class speaker packageWide-Range system frequency response (28Hz – 50kHz)Removable grill
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