The QSC KS118 is a premium 18-inch active subwoofer, delivering powerful low-frequency performance for live events, mobile entertainers, and professional venues. With a 3600-watt Class D amplifier and a long-excursion driver, it produces deep, impactful bass with a frequency range down to 35 Hz. Selectable DEEP™ Mode enhances low-end extension, while omnidirectional and cardioid configurations allow for flexible deployment. Built with advanced DSP, it offers adjustable crossover, delay settings, and scene recall for optimized performance. Its durable wood enclosure, heavy-duty casters, and M20 pole mount ensure reliability and portability, making the KS118 a top choice for demanding audio applications.