Gently used, Can't bring with me to new home. These deliver sound with amazing clarity and levels of rich depth. The missing piece to your home theater puzzle is this 5.1-channel speaker package from Onkyo. The perfect addition to your DVD player and home theater receiver, the SKS-HT750 provides all the speakers you need to enter the all-enveloping world of surround sound. 110W output, 2-way acoustic-suspension front, center and surround speakers provide the soundstage. The earth-shaking 230W powered subwoofer provides the impact. All together provide an astounding, precise and pleasurable cinema experience in your home. All 6 surround and 1 center channel speakers are 2-way acoustic suspension and have one 3-1/8" and one 1" driver. They are designed for use with home-theater amps/receivers that deliver 110 Watts per channel RMS. Their rated frequency response is 60 Hz to 50,000Hz. The subwoofer is independently powered with an integrated 230 watt amplifier. It has a 10" driver that delivers a frequency response of 25Hz to 150Hz. When considering a home-theater speaker system, it is crucial that all the speakers of your surround system are perfectly matched. It helps eliminate any colorization that might occur in sound delivery. It also permits accurate reproduction throughout the sonic range. All things considered, this Onkyo SKS-HT750B 7.1 channel speaker system is a great companion to your home-theater receiver, your new HDTV, and your video players. They are an integral part of your home-theater system, and a reasonable investment too.