PS-605315" PA SPEAKER BOX WITH HIGH QUALITY AND SOUND OPTIONAL WITH USB SLOT/ LCD SCREEN/ EQ/ DVD/ DC/ IPOD/ GUITAR INPUTS15" 2 WAY SPEAKER BOXSubwooferMagnet 60 ozVoice Coil 3"KSVFrequency Response 40HZ-18KHZ(-10dB)Sensitivity 98dB(+/-2dB)Impedance 8 ohmRMS Power 200WDimensions(W*D*H) 46*40*68.5 cmTwtter44 mm Ti.Diap.Driver 20 oz,8 ohmSpecial Design Blue LED indicator on front panel Amplifier (A)Impedance 4 ohmVoltage 115-230V/AC/60-50HZRMS Power 180wAmplifer(B)Special function USB SLOT AND LCD SCREENAmplifer(C)Special function USB/SD SLOT,LCD SCREEN,EQAmplifer(D)Special function USB/SD SLOT,LCD SCREEN,EQ,DCAmplifer(E)Special function USB/SD SLOT,LCD SCREEN,EQ,DVD,DCAmplifer(F)Special function EQ,IPOD,GUITAR INPUTAmplifer(G)Special functionUSB/SD SLOT,LCD SCREEN,EQ,IPOD,GUITAR INPUT