Klipsch Rp-1200SW Subwoofer - High Performance - 16.5Hz-138Hz Frequency Response - 121dB Max Acoustic Output - Class D Amplifier - Analog Preamp Stage - 400W Rms Power - 800W Peak Power - 12" Ultra Long Throw Cerametallic Woofer - Mdf Bass Reflex Enclosure - Front-Firing Aerofoil Slot Port - Dual Rca/Lfe Line In - Wa-2 Wireless Port - Wa-2 Wireless Subwoofer Kit Sold Separately - Internal Flare Technology - Low Pass Crossover - Variable Phase Control - Rounded Corners - Shock-Absorbing Rubber Feet - Steel Grille Posts - Woven Cloth Grille - (17.00"W x 25.92"D x 18.89"H) - (Ebony Vinyl)