SF-10 10inch Stage Pa Speakers 1.MDF board 2. Multi-porpose System 3. 10inch, 200W ZOMAX Pro-Audio Factory ... ,Truss ,Flying Case for about 21 years in China.SF Series SF-10 10inch Stage Pa Speakers Multi-popurse System FEATURES: Multi ... ,Bar ,KTV ,Exhibition background music system.SF-102-Way 10 Full Range SpeakerSYSTEM TYPE: 2-way 10’’ full rangeFREQUENCY RESPONSE: 55Hz-18KHzDISPERSION ...