Dear Sirs, Our factory, Audio Group Manufacturering Inc., located in Ningbo, China, was founded in 2000, as a manufacturer & exporter of professional audio equipment. We specialize in PA systems, Molded loudspeaker, Wooden loudspeakers, Install sound and Loudspeaker parts .It is had been 17 years(Since 1983) experience in Taiwan. With the sole aim of being the largest supplier of high quality, high value audio equipment in the audio market.All ADGlab&＃039;s products were and are designed to one simple philosophy.It is the sound to your life. With the update technology, unique location, professional staff, our product enjoys a lot both in quality and price. We know that high quality is the key which make ADGlab distinct fantastic in the same field. This is the premise on which ADGlab structures its company philosophy. ADGlab uses only the highest quality materials that meet or exceed industry standards for each product. These materials are then used in manufacture under the strictest quality control to produce the finest, cost-effective products in the Audio equipment Industry. The quality of our after-sales service and support is best illustrated by the large proportion of ADGlab customers who purchase further consoles. Relationship marketing is a key focus of our business and we appreciate your custom. Our mission is to ensure ADGlab remains the preferred choice for your audio requirements.ADGlab staff is a group of professional, passion, energy which dedicate to better ourselves as receiving confirmation of our work from the same line. We will walk together hand in hand with you to develop another audio wonderland. Many thanks for you kindly readed it,if you have any question,pls not hesitate let us know. Best Regards John Gu Pro-Audio ODM & OEM