MW-12CA Alu Basket MW-12B Steel Basket 2-WAY MOLDED SPEAKER BOX WITH 500WATTS AMP Woofer 12",2.5"V.C.,4Ohm,40~300Watts Paper Cone Tweeter Compression Driver,34mm Ti Diaphragm,8Ohm,40W Freq.Resp 40Hz~20KHz Dimension (430+230)X310X585mm Cabinet Material MPPO Rms/Max 200/400Watts Voltage 110/230V/AC/60~50Hz