Polk Audio CSiA6

 The Polk Audio CSi A6 is a high performance center channel loudspeaker that comes incased in a choice of either black or cherry wood. It is designed with Dynamic Balance polymer composite drivers that help reduce distortion and smooth wide range sound. A 1-inch silk/polymer dome tweeter is included to increase the detail of the sound. Magnetic shielding makes the speakers versitile by allowing it to be placed around computer equipment without risk of disruption or damage to the equipment. For cooling the CSi A6 speaker has low viscosity ferror-fluid cooling and a heat sink on the back of its neodymium magnet. Gold-plated 5-way binding post inputs are used to create secure connections and butyl rubber is used for the surrounds to increase the durability of the product. On the whole there isn't much of a difference between the Polk Audio CSi A6 and the Polk Audio CSi A4.