Technical specs and contents:

• 1 e/a 8” Cast Carbon Fiber Subwoofer
• Frequency response 10Hz-400Hz
• Power handling: 200WRMS (400Watt Pk).
• Impedance 4 Ohm
• Sensitivity: 87.36dB
• Mounting depth: 3.69”
• Cutout diameter:7.43”
• Cast frame: OD 8.27”
• Cone: Carbon Fiber
• Magnet weight: 25 Oz
• Cone surround: NB rubber
• Impedance: 2X2 Ohm
• Voice coil: 1.52” (38.55mm) Fs: 45.9Hz