MPX690.3 Pro - Hertz 6" x 9" 130W RMS 3-Way Coaxial Speakers. MPK165.3 - Hertz 6.5" 110W RMS 2-Way Component Speakers System. MPX690.3 Pro. Woofer magnet: High density flux ferrite. Pressed-pulp cone with cotton fibers material, combining stiffness and lightweight for a wide frequency response.
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