Features: 1) Use series BGY push-and-pull power integrated circuit module for amplification. High output level and good CTB and CSO value like the counterparts imported 2) New type of aluminum-alloy die-casting water-proof housing, with a larger effective area of over 20% heat elimination 3) Uses single modules for amplification, interstage attenuation, adjustable pre-slope, various types, such as splitter or tap output for option. More details please refer to model number system 4) Uses newly-imported and specified plug-in units to improve reliability 5) Higher ratio of performance to price and higher reliability