Bigger Horn, Better SoundA new, larger 90 Degree x 90 Degree silicone composite hybrid Tractrix horn provides incredibly efficient transfer of high-frequency waves into the listening area for crisper, clearer sound. The phase plug and compression molded silicone face ensure smooth frequency response.Linear Travel Suspension (LTS) Titanium Diaphragm TweeterThe exclusive 1" LTS minimizes distortion for enhanced, detailed performance. LTS tweeters are a hallmark of previous Reference Premiere Series, making it a core component of some of the best speakers in the world.Vented Tweeter DesignThe vented tweeter housing reduces standing waves that create unwanted harmonics, resulting in enhanced detail and clarity in high-frequency reproduction.All-New Cerametallic WoofersA signature feature on the Reference Premiere series speakers, the dual 8" Cerametallic woofers have been updated for absolutely flawless sound reproduction, minimum distortion, and maximum efficiency. The redesigned woofer will deliver the power, detail, and emotion you expect from a Klipsch Reference Premiere speaker.Tractrix PortUtilizing Tractrix geometry, the Reference Premiere port allows for the most efficient, fastest air transfer from the cabinet, which reduces port noise for punchier low frequencies and cleaner, more powerful bass.Bi-Wiring Bi-Amping CapabilityDual input terminals for bi-wiring / bi-am