Max Audio locates in Jiashan Zhejiang China. It connects Hangzhou and Shanghai, only 1 hour to Shanghai and Hangzhou Airport. Max Audio specializes in the production of coaxial speaker, subwoofer, PA speakers and Enclosures. Max Audio is dedicated to manufacture entry lever, mid-range and high-end speakers with the highest standards. OEM/ODM are welcome, if you expect a perfect products with great value andcustomer service , please don�� hesitate to ask for Max Audio.