Correct, Roger, I seem to have answered a question not yet asked. Guilty. If, down the thread a ways, the question is asked why horns are not more universally used in speaker systems- fully knowing the advantages of lower distortion and greater bandwidth (is that correct?) over a direct radiating driver- I will join in with a more positive contribution. Then I might try to explain that while many, including me, prefer the benefits of compression drivers and horn loading, there are design difficulties involved with horn driver applications.