This is an awesome used Marshall combo It features 50 watts into a 12" Marshall MG series custom loudspeaker. This is a single input, dual channel amp. First channel is the clean channel and features Gain, bass, middle and treble knobs. The second channel is the boost/dirty channel and it features gain, contour, bass, treble and volume knobs. The amp features built in spring reverb across both channels and has a master reverb knob for controlling the amount of reverb. It has a few more inputs on the face for FX send/return, line out and footswitch. It also has a 1/4" jack on the back for inserting music into the amp that you can play along with comes with a footswitch for changing channels on the fly swing by and check it out!