Get amazing big home theater sound with out breaking the bank. Polk Audio has been on the cutting edge of speaker technology since 1972. Years of experience and innovative products have made them a leader in the audio industry for decades. Included in this set are some of their most popular products powered by a Yamaha receiver. The brains: Yamaha RX-V671 receiver -90 x 7 channels @ 8 ohms -6 in/1 out HDMI (3D and ARC) -HD audio decoding -1080p upscaling The Braun: CS10 center channel - 20-125 watt power handling - 63Hz-24kHz Monitor 70 Series II - 20-275 watt power handling - 40Hz-24kHz PSW 108 - small but mighty - built in 100 watt amp - 35Hz-200Hz Manuals for the received and speaker wire with banana plugs included. All speaker and receiver are in excellent condition. Tower speaker grills are slightly scratch from cat but no damage to actual speaker. Would like to sell as a set. Speakers can be sold as a set separately.