2) PLANET AUDIO AC10D 10" 3000W Subwoofers + Vented Box + 2 Channel Amp +Amp Kit MAX Power Handling: 1500 Watts per sub (3000 Watts per pair) RMS Power Handling: 750 Watts per sub (1500 Watts per pair) Frequency Response: 23Hz - 3kHz Efficiency (1 Watt/1 Meter): 96 dB Voice Coil Diameter: 2"