Hangzhou Shuyuan Audio Equipment Factory, located in western Hangzhou,has established in 1998. Our company is one professional power amplifier enterprise which incorporates product design, research & development, production and sale. Our main products include Public Address Power Amplifier, professional amplifier, Peripheral Equipment, Digital Intelligent Controller, Column Speaker, Ceiling Speaker and so on. And we take profession, honesty, trustworthiness as business philosophy. We devote ...