The Reference R-620F floorstanding speaker is packed with best-in-class audio technology for an incredible listening experience that is built on more than 75 years of Klipsch acoustic experience.Tractrix Horn TechnologyKlipsch exclusive 90x90 Degree Tractrix horn technology ensures that the R-620F high frequency energy is aimed at the listener and reduces artificial reverb or filtering caused by indirect sound bouncing off of walls. Using this proprietary focused technology gives you the best clarity, dynamics, and detail from your movies and music.Linear Travel Suspension Tweeter With Kapton SuspensionKlipsch exclusive Linear Travel Suspension (LTS) aluminum tweeter minimizes distortion for enhanced, detailed performances. Using Kapton, an extremely light and rigid material, in the tweeter suspension provides high efficiency and improves resolution and detail. LTS tweeters are a hallmark of Klipsch speakers, making them some of the best speakers in the world.