Duke has made some great comments addressing the topic, answering it to its fullest.
If you don't get the nerdy part of it, it translates as:
"A well designed horn images as well as any other speaker".
Having made a good number of my own recordings, I can attest to that fact, by using those same recordings. Its not just theory- horns have been some of the most musical and involving speakers I've heard (Duke's amongst them, and his are unusually good deals on top of that), including their ability to image and play depth.
If you don't get the nerdy part of it, it translates as:
"A well designed horn images as well as any other speaker".
Having made a good number of my own recordings, I can attest to that fact, by using those same recordings. Its not just theory- horns have been some of the most musical and involving speakers I've heard (Duke's amongst them, and his are unusually good deals on top of that), including their ability to image and play depth.