... Material:MDF ,wood veneer,piano finishspecification: High Speaker: 25mm core silk tweeter with the Aluminium FrontMiddle Speaker:5.25" rubber edge paper cone hornLow ... AMPProduct Description:. 5.1HI-FI system,Musicality good, clear and exquisite, also as a home theaterMaterial:MDF ,wood veneer,piano finish 5.1 speaker system