The JBL MP418SP is a self-powered subwoofer designed to deliver deep, punchy low-frequency reinforcement for professional sound systems. Part of the MPro Series, it features an 18" JBL 2241G driver housed in a vented enclosure for extended bass response down to 35 Hz. The integrated Crown® amplifier provides 600 watts of continuous power, ensuring high output and reliable performance for live music, DJ setups, and fixed installations. Built-in processing includes a crossover and protection circuitry for seamless integration with full-range speakers. The rugged 18 mm plywood cabinet is finished with JBL’s DuraFlex™ coating and fitted with steel handles for easy transport. With its combination of power, durability, and clarity, the MP418SP is ideal for venues requiring professional-grade low-end support.