Per Zufall habe ich grade Bücher zum o.g. Thema gefunden und bestellt. Vielleicht ist das ja von Interesse
The Development of Large Rock Sound Systems Volume 1-The book of WEM, The Isle of Wight 1970 and Pink Floyd Sound systems
und
The Development of Large Rock Sound Systems Volume 2- Featuring the reconstruction of the complete sound system from Pompeii, Led Zeppelin's WEM system, and Pink Floyd’s WEM system from Pompeii, chapters on the evolution of the band van, companies in the 70s that hired equipment and some of the biggest equipment manufacturers