Our factory are famous brand in audio and video all over the world. we supply the Home Electronic.for exaple:Speaker,Power Amplifier,Tunering,and so on.Especially, ok series and Y-series are the most important in all over the world. We are the greater producer in specialized speaker,from raw material development, loudspeaker unit design and production, sound speaker design and production.our email is eysound(at)yahoo.com.cn pro audio, speaker, loudspeaker, amplifier, power amplifier, audio amplifier, audio power amplifier, audio equipments, stage equipments, professional audio, professional speaker, professional loudspeaker, audio speaker, proefessional amplifier, professional power ... more