2) HIFONICS HFX12D4 12" 1600W Car Audio DVC Subwoofers +Mono Amplifier+Amp Kit 800 Watt Max (1600 Watt Pair) 400 Watt RMS (800 Watt Pair) DVC 4 Ohm High Temp KSV Voice Coils 1 NBR Reinforced Rubber Surround Large Air Cooled Magnet Assembly