Vintage TEAC AN-300 Dolby 4-Channel Noise Reduction Rack UnitNotes a couple switches are bent but functional the top right light for the meter is out but seems to be functional. the rest work. A Vintage TEAC AN 300 Dolby 4 Channel Noise Reduction Rack Unit in Good condition! At Evolution Music, we attempt to highlight cosmetic defects (if any) by picturing every angle of every piece of gear so you know exactly what you are getting. We always picture any and all accessories too. What you see is what you will get