This listing is for a Pioneer Stereo Receiver SX-650 ().  This was tested and works.  But, the Power knob is missing.  The knob doesn't turn left to Speakers Off or A. A screwdriver was needed to move to Speakers A & B.   There is a discrepancy in volume when the input is changed from Tape or FM to Aux.  Aux and Phono are quieter.  There is some buzz when the volume is adjusted.  There are some discoloration spots on the silver face.  There are some bubbles, some nicks at the edges of the cabinet. There are some gray scratches in the black metal top of the cabinet.