Haunz, I will flatly suggest that you have never auditioned, side by side, two identical boxes tuned to the same frequency with the same driver, one with a regular round vent, one with an aeroport style flared vent.
I have. The difference is obvious.
Back when Korbon Trading still held it's Audio Forums, the one year Wayne Harris taught a course on box design and part of his presentation included an array of plexiglass enclosures (sealed, vented, bandpass, vented bandpass) and the vented enclosures included examples of both standard vents and aeroports. As I stated, the difference was obvious to everyone in attendance.
The difference between experience and simple speculation..
__________________
Paul Niwranski
1966 Cadillac Superior Crown Royale Limousine Hearse

If you're mirrors ain't shakin...you got taken...
RIP Member #8
Be careful what you wish for...