"http://www.amazon.com/gp/product/B000V2OQM0?tag=httpadvance00-20
A single center channel speaker timbre-matched to fit any Polk Audio home theater or multi-channel music system
Two 525-inch dynamic balanced drives with polymer composite cones
One 1-inch silk composite dome tweeter
Features a neodynium magnet low viscosity ferro-fluid cooling and a heat sink on the back of the magnet
All MDF construction and extensive asymmetric cabinet bracing ensure resonance-free enclosures
Polk Audio CSI A4 Center Channel Speaker (Single Cherry)"
