Alpine S-S69 520W Max (170W RMS) 6" x 9" Type S Series 2-Way Coaxial Car Speakers with KTE-S69G 6x9" Speaker Grills. The S-Series speakers have a large voice coil. The S-Series speakers are the first in the industry to use CFRP (Carbon Fiber Reinforced Plastic), a very lightweight yet rigid material.
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