LASE 18LW2000 an 18" subwoofer speaker intended for use in applications where incredible power handling, long excursion, and perfect control are required. It is ideal for high quality professional bass reflex and bass-horn speaker systems.The LASE L18W2000 uses a fiber-loaded cone assembly along with a high excursion triple roll, constant geometry surround, thereby providing a much smoother transition for the moving mass as it reaches its maximum excursion limits. Also included is a forced air venting system for reduced power compression. The LASE 18LW2000 is a popular replacement speaker for EAW, Yorkville, Sonic, Martin Audio, and other subwoofer speaker systems.