Your discription sounds like the 700XLE. Nak made it in that timeframe and followed it up with a 700XLE Mark II with exactly the same comestics. Very big and long vertical box that was wider than 18". Not rack friendly, but was meant to displayed and admired! Great sounding machines for the time. I owned several Naks including the 1000. Never had reliability problems, but I had them serviced yearly. Actally, these tapes decks saved my vinyl collection as I would tape every new record for my wife and she would play the cassettes. have fun, but I would worry about the heads being worn, pitted or groved from too much playing. Maybe hard or costly to replace.