Features Frequency Response (-3dB) - 35 - 120 Hz Frequency Response (-10dB) - 35 - 250 Hz Recommended High-Pass Frequency - 35 Hz Sensitivity 1W/1m - 99 dB System Power Handling (continuous/program/peak) - 1200/2400/4800 Watts Description Product Description Getting that deep, low bass at performances is exactly what the Electro-voice passive QRx218s Dual 18" Subwoofer is all about. It's not for your home system. Dual 18-inch sub with 1,200 watt continuous, 4,800 watts peak power handling. Easily delivers 133 dB SPL 1 w/1 m (139 dB peaks 1 w/1 m) at full power Two concert-proven EVX180B woofers with 4-inch voice coils have incredible fatigue resistance and excellent long-term reliability. Usable response extends to 31 Hz. Enclosure is built of 13-ply, void-free, grain-oriented Birch plywood finished in Futura, a sprayed-on polyurethane finish that is very rugged. Standard versions of the QRx218S are equipped with rear-mounted pocket wheels and handles to allow one person to comfortably move the enclosure. This version includes a rig. The rigging versions have L-track on the top and bottom plus a single-stud pull-up point on the back. The rigging versions do not come with wheels or a stand mount. LF Transducer - (2) EVX180B Nominal Impedance (Passive) - 4 Ohms Input Connections - Parallel Neutrik NL4 Chassis Size - 18 inches Speaker Type - Subwoofer Weight Net - 68 kg ( 149.91 lbs ) Unit Dimensions (HxWxD) - 11015 x 560 x 600 mm (43.66 x 22.05 x 23.62) of speaker cabinet alone