Here is an article with several good pictures of the Magico room:
"Most of the time, when you listen to a loudspeaker, you're listening to the room," Wolf said at the start of our exploration. "It's very easy to measure a speaker above 800Hz, regardless of the room it's in. Below that, it gets tricky. Hence, the environment in which you listen to and test your loudspeakers is crucial."
https://www.stereophile.com/content/visit-magico-factory#2bbk4J2SpeQY84z2.99
"Most of the time, when you listen to a loudspeaker, you're listening to the room," Wolf said at the start of our exploration. "It's very easy to measure a speaker above 800Hz, regardless of the room it's in. Below that, it gets tricky. Hence, the environment in which you listen to and test your loudspeakers is crucial."
https://www.stereophile.com/content/visit-magico-factory#2bbk4J2SpeQY84z2.99

