(4) Rockville RM88PRO 8" 8 Ohm 1200 Watt SPL Midrange/Mid-Bass Car Speakers Rockville RM88PRO 8 Open Basket Midrange Speaker CEA Compliant Power Ratings Kevlar. Reinforced Black Pulp Cone Treated Cloth Accordion Suspension. Linear Progressive Conex Spider Kevlar Reinforced Pulp Paper Dustcap. High Tensile Expanded Steel Basket Oversize 1.5 High Temperature CCAR Voice Coil. 100oz. Magnet Structure Weight