The Klipsch Reference Premiere RP-402S surround speakers utilize the latest Klipsch acoustic technologies to transform your movies into a completely immersive home theater experience. Features: Dual 1” Titanium LTS Vented Tweeter with Hybrid Tractrix® Horns. Dual 4" Spun Copper Cerametallic™ Woofers. Wide Dispersion Surround Technology. Premium Scratch Resistant Ebony and Walnut Finishes. Strong, Flexible Removable Magnetic Grille. Dimensions: 11.85” x 10.26” x 6.51”.