The Polk Audio RM Series are designed with the aim of providing ample power but without taking up a lot of room. The RM50T is sold as a single speaker and can be combined with other RM Series units as a stereo speaker or front channel in a surround sound system. It is outfitted with four 4.5-inch polymer cone midrange drivers and a 1-inch silk/polymer composite dome tweeter. The Power Port vent technology provides clear midrange response and is aided by a broad dispersion design for a large listening area. It allows for bi-ampable 5-way binding posts and is built with magnetic shields to protect against signal interference.