> sound striking the curved surfaces of the pipes is reflected over a wider angle than if it struck a flat surface <
Doesn't this depend on where they're placed? I see these things in photos in many different places - right in front of the speakers, off to the side (where no sound will reach them), near the front wall (again where little sound gets to), and so forth.
Has anyone measured their room's response and ringing with and without these things in place? Has the original manufacturer ever done this? I've looked in the past for such information and never found any.
Again, I'm not saying they make no change in a room. I just can't see how any change they'd make could be for the better. But if I'm wrong, please educate me! However, I'd much rather see hard dĪk than read subjective opinions.
--Ethan