Walkman: A História Ilustrada (1979–2004) A timeline of Sony’s cassette Walkman models from 1979 to 2004 - EP.11 - 1984: SONY WALKMAN WM-F5

 

Launched in 1984, the WM-F5 became the first Sports Walkman. Its yellow, impact-resistant

 shell used splash-proof sealing and rubberized controls, allowing brief immersion. It paired that

 rugged build with the Disc Drive mechanism and added an FM radio for outdoor use.

Walkman: A História Ilustrada (1979–2004) A timeline of Sony’s cassette Walkman models from 1979 to 2004 - EP.10 - 1984: SONY WALKMAN WM-DC2

 

Also released that year, the WM-DC2 added both Dolby B and Dolby C. Custom ICs

 supported the system, while a laser amorphous head improved durability and playback

 accuracy. A dedicated line-out signaled its professional intent.

Walkman: A História Ilustrada (1979–2004) A timeline of Sony’s cassette Walkman models from 1979 to 2004 - EP.9 - 1984: SONY WALKMAN WM-DD2

 

Released in 1984, the WM-DD2 added Dolby B using miniature ICs powered directly by its 3-volt

 supply. Doing so required a full internal redesign. Later DD models refined the sound further, but

 the DD2 marked the first jump in fidelity for the Disc Drive line.