Published by: Grupo 21 / G.T.S. (Grupo de Trabajo Software)
In: Spain (Madrid)
First issue: 1985
Price: 300 ESP
Language: Spanish

Soft Spectrum began as a 20-page magazine accompanied by a cassette tape of programs.
Starting with issue 17, and priced at 690 pesetas, it began to include a single program, in a medium-sized, rigid plastic case.