400W RMS power; two 6-1/2" injection molded graphite (IMG) woofers; 1" aluminum tweeter; vinyl woodgrain finish; Bass Reflex enclosure; 38Hz - 21kHz frequency response; 96dB sensitivity; 8 ohms nominal impedance; removable grille

Built to bring the big surround sound theater and music experience into the comfort of your living room the Polk signature S55 tower speaker continues in the Polk tradition of American HiFi Featuring Hi-Res certification a new Dynamic Balance designed acoustic array precision crossovers an anti-diffraction grille modern cabinet styling and exclusive power port bass enhancing technology you get elevated sound for movies TV and music in a totally re-imagined design Curved edges offer a sensual yet powerful look that fits with any home decor Enjoy seamless lifelike soundstage no matter where you’re seated in your listening room There’s no more sweet spot—instead it’s all around you