Polk Audio RC55i

The Polk Audio RC55i is a two-way in-wall speaker that's a part of the company's RCi Series. An entry-level model, the speakers have smaller woofers and frequency response than the RC65i. Meant to be a high-performance design, the model has 5.25-inch Blue Polymer Woofers with Rubber Surround that don't deteriorate like other cones and a .75-inch tweeter that has the ability to swivel to project sound to a specific area.

Both drivers are integrated with Dynamic Balance technology that eliminates objects that interfere with the sound. Additional features for the Polk Audio speaker include a 67Hz-20KHz frequency response, a paintable grille, 90dB sensitivity and a construction made out of durable, moisture-resistant materials that give owners the option to use the device in bathrooms or on outdoor porches.