The ASB7118-WRX Ultra Long-Excursion High-Power Single 18" Subwoofer from JBL is designed to house the company's 2269H Ultra Long-Excursion 18" Differential-Drive woofer. It is front-loaded, vented, and constructed with a neodymium magnet transducer, dual voice coils, and dual gaps. The woofer is capable of a peak-to-peak maximum excursion of 3.5" and features a durable composite cone for high excursion and a long lifespan. The ASB7118-WRX features an exterior fiberglass finish, corners wrapped in fiberglass cloth for maximum structural reinforcement, and an interior gelcoat seal for use in extreme environments and when directly exposed to the outdoors.