HomeAMPLIFIERKeyboard Amp G-50RC POWER OUTPUT: 50WSPEAKER:12 INCHCONTROLS:DEPTH, MASTER, CLEAN, TREBLE,MIDDLE, BASS, REVERB, SPEED/INTENSITYMIC LEVEL, PRESENCEINPUT: 1/4 INCH JACK(HI/LOW), mic inOUTPUT: HEADPHONEFOOTSWITCH: OVERDRIVE KB-15 OUTPUT:15W8 INCH SPEAKERCONTROLS:CH1-LEVEL, BASS, TREBLECH2-LEVEL, BASS, TREBLEINPUT: 1/4 INCH JACK(2)OUTPUT:HEADPHONEDIM:341(W) × 192(D) × 314(H) KB-30 OUTPUT:30W10 INCH SPEAKERCONTROLS:CH1-LEVEL, BASS, TREBLECH2-LEVEL, BASS, TREBLEINPUT: 1/4 INCH JACK(2)OUTPUT:HEADPHONEDIM:370(W) × 200(D) × 434(H)