The FS series is a compact, waterproof full-range loudspeaker system that integrates the best drive units and waveguide technology, originally imported. It features a square, rotatable aluminum horn that provides exceptional directional control free from internal diffraction and resonance, surpassing traditional horn theory. The aluminum horn significantly reduces resonance, thereby improving sound quality. The FS series loudspeaker system is equipped with high-end neodymium tweeters, whose annular diaphragm design minimizes intermodulation distortion. The neodymium driver includes a triple-layer copper flat-wire voice coil, ensuring extremely low distortion and increased power handling. The ultra-low distortion neodymium woofer features a high-flux linear magnet with a triple-layer voice coil, guaranteeing minimal distortion and enhanced power capacity. The system incorporates a dedicated passive crossover to ensure linear frequency and phase response for optimal sound quality. Designed for fixed installations in outdoor performances, large water parks, amusement parks, northern regions, and other demanding environments.