DESC: New high definition audio formats such as Super Audio CD and DVD-Audio demand a new level of performance from today's loudspeakers. LSi are the ultimate expression of Polk Audio's mission to provide the highest quality audio products at a reasonable price.The LSi15 is a floorstanding speaker that delivers superior linearity, definition and imaging, as well as bass response that's rich, deep and satisfying. Like the whole LSi Series, they are highly accurate and intensely musical. Their mirrored image driver arrays and Ring Radiator Tweeter present a large soundstage without sacrificing pinpoint localization. Listen to the LSi Loudspeakers with SACD and DVD-Audio sources to reveal their higher accuracy and resolution, with more dynamic response and superb focus. The LSi Series delivers three-dimensional imaging and remarkable reproduction of even the finest details.