gisenaudio.com,4 channel professional power amplifier,At Gisen Audio Equipment, we provide customers with professional OEM/ODM service for all products, including 4 channel professional power amplifier. The basic MOQ is required but negotiable. For OEM/ODM products, free design and pre-production sample is provided for confirmation. Gisen provides 4 channel professional power amplifier products that are selling well in United States, Arabic,Turkey,Japan,German,Portuguese,polish,Korean,Spanish,India,French,Italian,Russian,etc. Gisen,Our company main produces 4 channel digital amplifier,power amplifier 1u,4 channel dj power amplifier.