Pro Car Audio by JBL. Club coaxial and component speakers bring JBL pro sound to more vehicles. · Plus One™ Woofer Cone Architecture. · Acoustically Damped, UV-Resistant Polypropylene Cone. Available in a range of standard sizes — 3", 4", 5-1/4", 6-1/2", 6" x 8", 4" x 6", 6" x 9", and 3/4" — they’re the perfect upgrade from factory speakers.
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