POWERFUL, COMPACT FLOORSTANDING SPEAKER - A standout in home theater speakers, the Polk Reserve R500 Tower Loudspeaker features a 1" Pinnacle Ring Radiator Tweeter & dual 5.25" Turbine Cone Woofers for crisp highs, detailed midrange and rich bass UNMATCHABLE AUDIO PERFORMANCE - With Hi-Res Audio Certification, these Dolby Atmos speakers with IMAX Enhanced technology deliver dynamic high-frequency response and unmatchable clarity. Supports hi-res formats like DSD, FLAC, WAV, ALAC, and MQA DEEP, ROOM-FILLING BASS - Features a bass reflex cabinet with a rear-firing port and Polk's Patented X-Port Technology with Eigentone Filter (ETF) to eliminate unwanted noise from these tower speakers for music, movies, and video games COMPLEMENTS ANY HOME THEATER SYSTEM - These slim floor speakers can be used as a front, side, and/or rear surround for any multichannel home audio system. The premium, large 5-way binding posts ensure easy & efficient setup with loss-less connection CAREFULLY ENGINEERED DESIGN - Polk Audio Speakers feature a fully sealed enclosure with cross-braced cabinets that minimize resonances, and acoustically inert anti-diffraction magnetic grilles that offer a clean look without sacrificing sound quality