20 watts electric guitar amplifier GF Music supplier many models guitar amplifiers,pls contact us for more 20 watts electric guitar amplifierOutput power: 20 watts Speaker ... input,clean channel(volume); drive channel(gain,volume,4 drive model select switch "overdrive,drive,metal,heavy metal"); 3 band EQ ... reverb,Aux input,footswitch(channel /drive),headphone output . 20 watts electric guitar amplifier