Klipsch RS-42 II Reference Series Surround Speakers (Black Pair) Purchase this bundle and receive a pair of Klipsch RS42 II Black Reference Surround Speakers Tractrix Horn technology: Enjoy lifelike sound & more output while using less energy. This proven technology is also extremely reliable, has low distortion as well as an incredibly large soundstage. Your home theater will have better defined imaging than ever before with this pair of rear speakers. Cerametallic woofer cones: These specially treated aluminum woofers are exceptionally lightweight and rigid resulting in lower distortion and clearer sound. Titanium tweeter with linear travel suspension: This astonishing technology is borrowed from our flagship Palladium Series speaker and provides the listener with an open and natural sound. Feel like youre in the recording studio or on the set of the film when you hear this speaker pair. Wide Dispersion Surround Technology (WDST): If placement of rear speakers is a problem, WDST is the solution. No matter where you hang these speakers, both localized and ambient sounds will be flawless thanks to the flexibility of WDST. Enhanced crossover frequencies: Whether seated directly in front of these rear speakers or off to the side, surround effects will transition smoothly thanks to Klipschs enhanced crossover.