Yes thank you Wayne, I am interested in the plans for the mid and high horns. What are the crossover points you recommend. You also suggest an Eminence Magnum in a suitable enclosure. Would that be the 15" or 18" and what size box and port is required. I would like the width of the box to match the width of the midrange horn, so will adjust height and depth to obtain the required internal volume. I also like the look of your Thermionic 8 Pi and wonder how this would compare to your recommendation of Eminence Magnum with mid and tweeter horns on top. I showed the picture of the Audiophile Series seven Pi to my friend who is quite excited about it and he and I would both like to know what the difference in performance is between the 15" and 18" Regards