Klipsch proprietary Tractrix® horn-loaded technology ensures the high-frequency energy of the RP-404C speaker is aimed directly at the listener and reduces unwanted, artificial reverb caused by indirect sound bouncing off walls - meaning you experience the most clear, detailed, lifelike sound possible.

Klipsch Reference Premiere series speakers feature a compressed molded silicon face that is matted to the 90° x 90° Tractrix horn to reduces horn resonance for smoother frequency response. Klipsch computer modeled phase plugs act as a mechanical filter to further ensure a smooth, flat frequency response while protecting the tweeter from damage.

A vented tweeter design reduces standing waves behind the tweeter diaphragm for a smoother high frequency reproduction.
The titanium tweeter diaphragm's light weight yet rigid composition exceeds the performance of aluminum, polymer or silk tweeters.
Klipsch award-winning Linear Travel Suspension technology leverages a piston motion of the titanium diaphragm that lowers distortion and delivers real-to-life sound.
A ceramic magnet housing provides premium performance, Klipsch Reference Premiere tweeters set the standard in acoustic reproduction.

Klipsch Proprietary Cerametallic™ woofers are the RP-404C speaker signature statement for both sound and aesthetics. This extremely light, rigid materials holds its shape while being able to deliver lower frequencies with maximum efficiency.