This is a vintage stereo receiver from the late 70s in good condition. This receiver is considered to be a very musical receiver. Some people think its the best MOTL 110 rms receivers ever made. The concept has a ding factor low end frequency control of 400. I challenge you to find an other MOTL receiver with half this ding factor. The Concept has just been serviced. Everything work. Has minor scratches on the front. Box very good condition. Text