Polk Reserve R200 Large Bookshelf Speaker with Exceptional Audio Performance. The Polk Reserve R200 Bookshelf Speakers are high-performance stereo speakers that deliver ultra-clear and crisp highs, smooth and detailed midrange, and effortless bass. It features a 1" Pinnacle Ring Radiator Tweeter and a 6.5" Turbine Cone Woofer that produce unmatched audio clarity with Hi-Res Audio Certification, Dolby Atmos, and IMAX Enhanced support. Whether used by home theater enthusiasts or an audience of audiophiles listening to music, watching movies, or playing video games, the passive speakers' bass reflex cabinet with a rear-firing port and Polk's Patented X-Port Technology with Eigentone Filter (ETF) ensures tight, distortion-free bass for an immersive audio experience. The premium, large 5-way binding posts ensure an easy and efficient setup with a lossless connection. Place this large speaker on a stand, shelf, tabletop, or any flat surface, and add another R200 speaker & pair it with two R700 towers and an R300 center channel, or pair it with three R350s as L/R surrounds and center channel, and add R900 height module for depth (all sold separately) to create a multichannel surround sound system. The R200 is compatible with the latest file formats like DSD, FLAC, WAV, ALAC, and MQA, so you can experience superior audio performance at home.