Klipsch RP-1600SW Subwoofer - High Performance - 14.5H z-175Hz Frequency Response - 125.5 dB Max Acoustic Output - Class D Amplifier - Analog Preamp Stage - 800W RMS Power - 1600W Peak Power - 16" 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 - ( 23.50"W x 27.35"D x 23.39"H ) - (Ebony Vinyl) with a Klipsch Wireless WA-2 Subwoofer Kit - A Solution - No More Long Cables - No Manual Pairing - Frequency Response 15Hz-150Hz - (Black)