EX series professional power amplifier is a high-performance, high-efficiency and high-quality power amplifier. 2U standard chassis, high-strength steel frame structure, and STM patch technology are used to ensure the consistency and stability of the product. In order to obtain the most beautiful sound, the American Motorola power amplifier tube is used. The high-efficiency variable speed cooling system can automatically adjust the fan speed during work to achieve the best cooling effect and effectively reduce the fan noise of the machine in static work.