The SX218 subwoofer system is equipped with two 18-inch ultra-low frequency transducers and a high-energy driver mounted in a well-designed direct-radiating enclosure.

The SX118 is a direct-radiating, compression-loaded subwoofer system, featuring a built-in 18-inch high-power low-frequency transducer.

The S-400 features a 12-inch low-frequency transducer and a 1.5-inch neodymium-boron compression high-frequency driver, making it a high-performance passive two-way speaker.