SF-15 15 inch Professional Audio 1.MDF board 2. Multi-porpose System 3. 15inch, 450W ZOMAX Pro-Audio Factory is a manufacturer ... specialized in Pro-audio,Pro-lighting,Loudspeaker Unit,Truss ,Flying Case ... ):457*457*700(mm)Welcome to our website :www.zomax-audio.com SF-15 15 inch Professional ...