Model:SP-215A 2 way molded active speaker box Woofer 15',4Ohm,50~200Watts Paper Cone Tweeter Compression Driver,44mm Ti Diaphragm 8Ohm,60W Freq.Resp 40Hz~20KHz Cabinet Material MPPO Rms/Max 180/450Watts Voltage 110/230V/AC/60~50Hz ***The SP series speaker have 15 inch,12 inch,10 inch,8 inch,4 inch active and passive version are available,we have good quality and can beat any price.