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10 inch high power differential drive bass unit 1.5 inch polyethylene diaphragm tweeter compression ring Box body is made of birch, black steel surface by sand paint processing 90 70 ~ x degree coverage angle design, with axial uniform and smooth and partial axial response The appearance of avant-garde, 16, steel protective fence with dust-proof net plane The precise design of the divider can optimize the power response and vocal frequency performance force Sound protection technology SonicGuard can effectively protect the high frequency driver, avoid power overload and interruptions