(2) Alpine SWT-10S2 10" Single 2-Ohm Shallow Mount Car/Truck Subwoofers Totaling 2000 Watt Peak/700 Watt RMS with a Kevlar Reinforced Pulp Cone Alpine SWT-10S2 10" 1000 Watt Shallow Mount/Truck/Car Subwoofer. Power Rating: 1000 Watts Peak/ 350 Watts RMS. Kevlar Reinforced Pulp Cone Polyurethane Foam Surround. Recessed pole port for better airflow Side Cooling Air vents- allows better cooling even with small enclosures. Impedance: 2-Ohms. X-MAX/Excursion: 11MM Frequency response: 30 Hz  200 Hz. Shallow Mounting Depth Mounting Depth: 4.16" - Can be mounted in tight spaces like under or behind a seat for max installation flexibility. Designed For Sealed or Vented Enclosures