50 watts professional guitar amplifier Output power: 50 watts Speaker: 12" 50 watts professional guitar amplifierWeight: 17 KGSDimensions: 53CM×25CM×47CMFunctions:input,drive(gain,shape,prestence,volume),channel switch ;clean channel(volume,3 band EQ),spring reverb,master volume,headphone output;effect loops(return,send),footswitch(reverb/channel). 50 watts professional guitar amplifier