Technical specs and contents:

• 1 pr 6.8” Enhanced Mid-Bass Subwoofer
• Frequency response 10Hz-4000Hz
• Power handling: 150WRMS (300Watt Pk).
• Impedance 4 Ohm
• Sensitivity: 83.9dB Mounting depth: 3.37”
• Cut out diameter: 5.812”
• Cast frame: OD 6.81”
• Cone: Mid/Kevlar/Fiber glass
• Magnet weight: 30 Oz
• Cone surround Buytal rubber
• Impedance: 4Ohm
• Voice coil: 1.5” (38mm)
• Fs: 38Hz