What Do You Think . . . and How Does It Work?


While watching vids on YouTube, I came across this pipe speaker design from a Dr. Linkwitz (see below).   The sound of this speaker is said to be impressive.  I was wondering if you know about this, how it works and what you think of this speaker design.  Also, what do you think would be the best room placement for such a speaker, and would you be tempted to build them?

https://www.linkwitzlab.com/Pluto/intro.htm
bob540
Linkwitz was one of the contemporary gurus of speaker design (think LINKWITZ-Riley crossover, etc). His site is full of invaluable info
i dont know any speakers made by him. The crossovers bear his name but they were WRONG. 
PVC pipe for a speaker box is a hoax. After all the effort wilson and magico go to with their cabinets, PVC cannot be the answer.