Uni-Core® Force Cancelling Subwoofer, Amplifier Power: 1000W RMS (2 x 500RMS), Amplifier Type: Built-in Class D, Frequency Response (±3dB): 11Hz - 200 Hz, Driver Size: 2 x 6.5” Dia, Dimensions : 246 x 256 x 248 mm (9.68 x 10.07 x 9.76 in.), Weight: 14 kg