Who is an audiphile? In 1957 they were builders, not buyers

I found a very interesting article about the history of phonographs, turntables, etc.  What caught my attention was that, according to this article, in 1957 an audiophile was not a buyer but a builder and innovator:

audiophiles developed component systems with separate turntables, leading to a subculture of kit building, utilizing the likes of Garrard or Thorens turntables and Grado Labs phono cartridges.

Full text here:

https://mixmag.net/feature/the-evolution-of-the-turntable