Amplifier used as part of a DJ setup

A BGW professional power amplifier, model number 100B. The metal amplifier is black in color with white type. The front plate has three dials and an earphone jack. There is a BGW logo on the proper right of the front plate and cursive text that reads: [Professional / Power Amplifier / Model 100B] on the proper left of the front plate. The top of the amplifier has a long caution message in white text. The back of the amplifier has a plate with model information, a frayed power cord, a fuse, two outlets, inputs, and outputs. The plate with model information reads: [MODEL 100B S/N 79D0206 / THIS UNIT IS WIRED FOR THE VOLTAGE AND CURRENT INDICATED BELOW TO CHANGE VOLTAGE REFER TO OWNERS MANUAL. / 120 VOLTS 3 AMPS].