4) New Planet Audio AC8D 8" 4800 Watt Car Subwoofers Power Sub Woofer DVC 4 Ohm New Planet Audio AC8D 4800 Watt Car Subwoofers (4 pack) 600 Watt RMS (2400 Watt per 4 pack) 1200 Watt Max (4800 Watt per 4 pack) Poly Injection Cone Material Customizable Trim Ring