GA1508P Plastic Speaker Box System type: 2 Way Molded Speaker Box with BI-AMP (OR MONO-AMP) Woofer: 15 inch woofer, 60 OZ 65.5 mm VC, 8 Ohm Tweeter: 44.4 mm TI. Diao driver, 26.5 OZ 8 Ohm Frequency Response: 45-20 KHz (-10 dB) Sensitivity: 99±3 dB/M/W Dimensions (W*D*H): 495*430*720mm Net Weight: 24 kg Power: 220W