$70 · Polk Audio TSi CS10 High Performance Center Speaker

* 1" (25mm) Fabric/Polymer Composite Dynamic Balance Dome Tweeter with powerful Neodymium magnet structure delivers clear and detailed high frequency response for realistic reproduction of vocals and instruments. * Two 5 ¼" Bi-Laminate Composite Dynamic Balance Drivers are lightweight and stiff with good damping for high efficiency, excellent bass and lower distortion. * Non-resonant all-MDF enclosure construction with ¾"-thick baffles ensures cleaner, clearer, more lifelike sound quality. * Unique Reversible-design cabinets can be turned upside down to aim "up" when placed under a video monitor. * 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. Power Rating (Speakers) 20 - 125W Frequency Response (Speakers) 53Hz - 25kHz Sensitivity (Speakers) ≥91 dB Nominal Impedance8 ohms