Established in 1980, Grand Dagu Company is specialized in loudspeaker production. While headquarter locates in Taipei, the manufacturing site sets in Xiamen with sufficient facilities in over 20,000 square meters. With abundant OEM/ODM experience for world renowned brands, customer orientation with consistent quality is our core principle. Our products cover in-wall/ceiling, home theater, PA system, indoor/outdoor speakers and parts. Enquiries are always welcomed!