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
Post removed 
I’ve requested that my post just above this one be removed; decided that I’d rather not perpetuate the squabble.

Edit:  Thank you geoffkait for letting me know in your post just below that "delete" was still in effect after "edit" had timed out.  I've now deleted it. 

Duke
If you want it deleted expediently you can delete it yourself, no time limit for deleting posts.