Professional 381mm single subwoofer, specially designed for micro line array, give you exceptionally low harmonic distortion and high fidelity performance using innovative technology of thunder. Special water & UV resistant coating enclosure is very strong against scratch and damage.*Features- Professional Higt Output Dual Subwoofer - Single 381mm LF driver with power handling 600 Wrms / 1200W peak - Water and UV resistant durable enclosure - Recommended complementary system : T-line 6.1k