Peavey Mid-Size Combo PA System with DM112 Pair, DM115 Sub Pair, PV14 AT Mixer, Mic, Cables, and Stands Two-way bi-amplified powered speaker system 12" heavy-duty woofer DX 14 compression driver, with 1.4 inch titanium diaphragm Fan cooled for maximum reliability Exclusive Quadratic Throat Waveguide technology, 110 by 80 degree coverage