Polk Audio LSi 9

Polk Audio LSi9 are high definition bookshelf loudspeakers for serious listeners. PRODUCT FEATURES: Superior musical accuracy, serious theatrical impact; Designed for high definition formats such as SACD and DVD-Audio; Mirror imaged pairs for tightly focused highs and true three-dimensional imaging with minimized room reflections; 5 1/4" Dynamic Balance drivers with Aerated Polypropylene cones for wide response and low distortion; Cascade Tapered Crossover array ensures flat miband response and improves imaging focus, and depth; Cast aluminum driver baskets resist flexing and "ringing" for ultra-tight bass and coloration-free midrange; Ultra high performance Ring Radiator tweeters, rare in speakers at this price, for extended frequency response, low distortion, excellent dynamics, and superior detail and transparency; Side panels are 1-1/2" thick for a totally inert enclosure - you hear all the music and only the music; Precise deep bass response provided by a rear-firing Power Port venting system built into the speaker's back plate; Smooth, natural midrange reproduction thanks to patented Acoustic Resonance Control technology; Magnetically shielded for safe placement near video monitors; Premium crossover components with advanced transducers for consistent high-end sound quality; Mylar bypass capacitor in the high-pass crossover extends and flattens high frequency response. Hear musical details you've never heard before; Open architecture low diffraction grille for spacious imaging; Dual (bi-ampable) gold plated 5-way binding post inputs for the most secure wire connections and the most versatile wiring applications.