The SB-18 is a high-performance single 18-inch subwoofer featuring a weather-resistant 18-inch driver and incorporating MMSS (Mirror-image Mechanical Suspension System) and MALTCROSS technologies. MMSS technology ensures symmetrical excursion of the moving assembly, resulting in lower harmonic distortion. MALTCROSS is a state-of-the-art cooling technology designed to ensure consistent, reliable, and optimal driver performance within the system, maximizing total SPL while maintaining stability. Consequently, the SB-18 delivers high sensitivity and high SPL, adding powerful, impactful, and commanding bass to the sound system. Its compact enclosure design eliminates unwanted rear sound radiation, delivering high sound pressure levels and precise low-frequency reproduction.