COMPACT, WALL-MOUNTED SHELF SPEAKERS - Experience films, music and games in high-resolution sound with your home theater sound system or hi-fi system with the Polk ES15 bookshelf speakers. HEAR MORE DETAILS - The Hi-Res Audio-certified Terylene dome tweeter of the ES15 delivers crystal clear highs (40+ kHz) for high-resolution music from services like Apple Music, Tidal, Amazon Music HD, Qobuz and Spotify HiFi as well as the soundtracks of the latest Ultra HD movies. LOUD BASS WITH LOWEST DISTORTION - Polk's patented Power Port design provides more power and less distortion with a larger surface and more even airflow. In conjunction with the powerful 5.25-inch woofer of the ES15, this means effortless bass. UNIQUE TECHNOLOGIES - Thanks to the acoustic array with dynamic balance and phase-optimized precision crossovers, the loudspeaker boxes ensure a seamless, realistic sound regardless of your listening position. SOLID DESIGN - A solid and acoustically neutral housing made of specially damped Medite MDF, a diffraction-reducing magnetic speaker cover and gold-plated 5-way connection terminals ensure the purest sound.