i AM A SENIOR WHO IS DOWNSIZING and offering this excellent unit to audiophiles and collectors of audio equipment. It is a Yamaha KX-W500U, a high-end unit with an amazing number of features. For example, Dolby B and C, two speed dubbing between decks, up to 24 hours continuous music using 90 minute cassettes, music search, automatic tape bias and equalization every time you load a tape. ,Quick-read instruction manual, and a detailed manual in English, French, and other languages.
I have used the unit as part of my audio music set-up, but also used it as a learning machine to study technical and business information without having to keep a rather cumbersome library of technical manuals.