The S218X is a dual 18-inch front-loaded inverted phase subwoofer, offering a frequency range of 30Hz to 150Hz (-10dB). Equipped with two high-power low-frequency drivers, each boasting a 5-inch (125mm) voice coil from Precision Devices, the S218X subwoofer incorporates a well-designed magnet ventilation structure, effectively managing the temperature when operating at high power and reducing the occurrence of power compression in the speaker. The internal cabinet design includes a filtering mechanism that eliminates the common airflow noise associated with dynamic movements of typical low-frequency drivers. This results in a significant boost in energy output in the ultra-low frequency range and a reduction in nonlinear distortion in the lows. The 18-inch low-frequency drivers employ rigid and durable cone structures along with copper wire voice coils, ensuring that the speaker delivers a sound experience characterized by both impactful strength and thickness.

The S218X subwoofer is a versatile addition to any sound setup, enabling an enhanced low-frequency presence in applications ranging from dynamic KTV parties to bustling nightclubs. Its innovative design and technical features make it a perfect companion to other FPA speakers, offering a cohesive and immersive audio experience.