First choice in active subwoofers, the LS801P combines a cast-frame 18-inch bass driver with a rear-loaded bass horn enclosure made from 15mm birch ply covered in rugged black carpeting (black Ultrathane painted version - LS801PB is also available). Now add 2500 watts of onboard peak power featuring full-time "invisible" limiting. Result - a rugged, high-powered "earth mover." Balanced XLR inputs are included along with 1/4-inch TRS inputs which, at the push of a button, can handle either line-level or speaker-level signals (you can simply connect it to any full-range speaker for quick and easy setups). Connections also include both XLRM and 1/4" Output Link jacks for interconnecting up to 10 LS801P's in larger concert systems. An additional XLR 'Mono Blend Input' allows the LS801P to function in a stereo system by blending the balanced L & R signals from a stereo mixer and creating a single in-phase mono signal.