Energy CF-30 Floorstanding/Tower Speaker (Black) Exclusive Convergent source Module features woofer and tweeter uniquely integrated for accurate sound Dual 5.5-Inch Woofers feature patented Ribbed Elliptical Surround suspension Exclusive 1-Inch Hyperbolic Aluminum tweeter provides high frequency accuracy, high power-handling and wide dispersion Rigid, low-distortion cross-braced MDF enclosure with attractive Black Ash Finish and Black High Gloss trim. Port plug & carpet spikes included.