Akai 1722 II 4 TRACK STEREO REEL TO REEL VINTAGE TAPE RECORDER OF 1975-77
Quadraphonic open reel tape - Wikipedia
The Tascam 34-B 1?4" 4 track reel to reel recorder improved on the model 34 from 1983. It was released either in 1986, or 1… | Tape recorder, Audio room, Hifi audio