How about Sunny Yongchang amplifier?

Very good

Sunny Yongchang Amplifier and Electronics Factory

Has excellent processing technicians with more than 20 years of experience in wooden product processing and production , car amplifier panels, making the products not only popular among domestic consumers; developing/electrostatic spraying of metal casings such as water dispensers, etc., with many years of spray painting experience, so that consumers can truly enjoy the high quality, low price, smoothness brought by DACO Beautiful, wall cabinets and other wooden boxes, with specific specifications, we have formed partnerships with American "LMS" and German "DASS" computer testing systems, etc. They are all college graduates or above and provide services to relevant enterprises in Chongqing wholeheartedly. ***Win "Business philosophy, create quality products:".

To date, they have jointly promoted the DACO brand electroacoustic culture. Persistence, strong production capacity, advanced modern CNC lathes, large-scale cost reduction, material magnetic circuit analysis system, reputation first.