Sooooo that's a NO to real world practical experience then? I thought as much.

From 20 feet away I could not tell which box was playing as the two were compared so it was as good as an ABX test. Closer examination confirmed the flared vent was the superior performer.

Let me try to simple this down for you.

Know anyone with a Clarinet? Take the bell off the end and replace it with a piece of straight tube the same length. Think it will sound the same? The answer is no. Why?

I find your stance on this subject interesting since you tend to promote yourself as learned in advanced box design, including horn theory. I guess I was indeed wrong about something.

__________________
Paul Niwranski
1966 Cadillac Superior Crown Royale Limousine Hearse

If you're mirrors ain't shakin...you got taken...
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Be careful what you wish for...