Sony XS-LD127P5 Subwoofer has an Impedance of 4 + 4 Ohms and a Sensitivity of 89 dB/W/m. The Frequency Response is an amazing 18 - 2,500 Hz with a power handling of Output Power at 600 Watts (RMS).

Features 

• Woofer Size: 30cm
• Type: Enclosure/ Dual Voice Coil
• Peak Power (W): 2000W
• Rated Input Power (W): 600W
• Impedance (ohm): 4ohms + 4ohms
• Weight (kg) approx: Approx. 9.3kg