How would anyone know if they are the perfect speakers if they have not been built? All the science is not proven right? How would they sound? So unless there is something that we can hear, then this is all science and guess work. In building components, it takes us many prototypes to get to the final product and even then we are constantly making adjustments to improve the sound and the design. We are never satisfied. Plus there is never one correct way that will please everyone. So while I have heard the Linkwitz speakers that were built by a friend of mine and they sounded excellent but they also had things that some did not like. Audiophiles will pick apart anything. So while in theory something will be the best to you, it never is to everybody.
Happy Listening.
Happy Listening.