Wayne, you have posted a very complete and thorough explanation of the benefits of the Pi cornerhorn contrasted with the Klipschorn. Thank you. I was wondering whether or not you have used/tested any of the Lambda Acoustics motors? Lambda divers use a special copper faraday ring that extends the HF range of their woofers, as well as significantly reducing distortion. This is right in line with what you are saying and I would expect them to be perfect for Pi cornerhorns. They are also very reasonably priced.