SUB-10B-N is a 10'' active subwoofer designed for HD home theater system. It has robust power output & abundant power margin, which delivers super shocking bass effect and enhenced audio performance for the whole speaker system. As a top 10 audio brand in China, Tonewinner has 30+ years experience in designing and manufacturing acoustic products. As an original supplier, Tonewinner always warmly welcomes distributors, partners and customers around the world.