Polk CS20 center speaker for sale in good shape. Mid/Woofer: 2 - 6.5" Diameter (16.51cm), Bi-Laminate Organic Fiber cone Tweeter: 1 - 1" Diameter (2.54cm), Silk Dome Dynamic Balance Power Rating 20-150 w/channel Frequency Response 48Hz-25kHz Nominal Impedance 8 ohms Sensitivity 91 dB Connectors Inputs: 5 way binding posts Power Supply AC Color Black Features Features Non-resonant all-MDF enclosure construction with 0.75"-thick baffle ensures clearer and cleaner sound quality. Unique Reversible-design cabinets can be turned upside down to aim "up" when placed under a video monitor. Five-Way Binding Post Connectors for more secure hook-up options. Magnetic shielding for safe placement near TVs with no risk of video distortion. Critically Tuned Flared Port minimizes port noise ("chuffing") for good low frequency extension with low port noise, resulting in natural, full-bodied sound with rich bass. Crossover: 2500 Hz, 2nd order Enclosure Type: Vented Dimensions & Weight Dimensions & Weight 7.38" x 23" x 10.75" 19.00 lbs. Price is firm.