The TrueLine XQ10-P is designed to satisfy the need for an extreme high SPL extended bass loudspeaker system. Components have been selected solely for their performance. The TrueLine XQ10-P utilizes 4 each (quad) direct radiating, 10-inch, 250W cone drivers in a tuned enclosure, which provides maximum output with minimal distortion and smooth extended low frequency response. The tour-tested, 15 ply Baltic birch, highly braced enclosure and 18 mm thick baffle board construction provide unsurpassed rigidity and strength.