WM-EX78

The WM-EX78 is a style-forward playback Walkman in Sony's 1992 EX lineup, essentially a visual reinterpretation of the EX77 built around dual-color body finishes instead of a new transport concept. It retained the familiar core feature set of auto-reverse, Dolby B, Extended Dynamic Bass Boost, Automatic Music Sensor, blank skip, AVLS, and a wired remote, while the two-tone exterior pushed it further into accessory territory than many of the more restrained models around it. Mechanically it stayed close to proven EX-series foundations.

What makes the EX78 revealing is that it shows how much of the Walkman story had become about surface identity by then. Sony was not trying to justify this model through a new head system or tuner trick, but through the fact that portable audio had become something people wore and handled constantly. It is a product from the phase where appearance itself had become a legitimate branch of development.