... MIC,2 groups music instruments 2)Speaker Driver:15" 3)Speaker Impedance:8ohms 130W Keyboard amplifier Model:KPK-25001.Output: ... .Controls: Channel 1—LOW,MID,FREQ,HIGH,VOLUME,REVERBChannel 2- LOW,MID,FREQ,HIGH,VOLUME,REVERBChannel 3- LOW,MID,FREQ,HIGH,VOLUME,REVERBMaster Section ... -1/4”Jack input;Channel-2-1/4” Jack inputChannel 3—1/4”Jack input;Channel 4—1/4” JACK Input ...