In addition, the RC-R boasts one 1” chambered aluminum dome tweeter, dual 2” chambered aluminum dome midranges, and a 5-1/2” Kevlar ribbed-elliptical surround woofer. Most notable about the RC-R is the fact that it can be used either in a pair, or by itself, allowing a ride range of customizable home-theater options. Additional features of the Energy RC-R rear surround speaker include built-in mounting for added convenience, a cool black ash finish, and a Flat On-Axis Frequency Response with a wide bandwidth for uniform audio. The Energy RC-R retails for $325.00 and comes with a 5 year limited warranty.