Post the actual ABEC projects that are created, perhaps there will be something more obvious that is different between them.I have rerun it. The output of both models, CircSym and 3D, is indeed close, differing a bit in mid frequencies. Why is it then, that VCAS is giving this output? The waveguide in VCAS seems rotated. I want to compare asymmetric and axisymmetric devices and it would be helpful if axisymmetric output could be gauged in VCAS, maybe without running the slower 3D mode. The output is calculated from Ath beta 5, source is attached.
The two horns were different. What I was interested checking was the 10khz dip which is evident in both cases.I would say that in this case the 4 vane version is actually quite good for a 2" driver. There is some HF axial ripple similar in both versions which may have something to do with the input wavefront shape, who knows. But why are the two versions so much different at midrange frequencies? Are these different horns or why do you think is that? It's probably not due to a different number of vanes.
Did you mean decreased C-C distance? No it doesn't, IMHO, but what you show is only mildly asymmetrical anyway.Hard to say whether the increased C-C distance that is possible on a baffle outweights the detrimentel effect of a smaller vertical length.
Increased. With a given baffle height and woofer diameter, in a two way system the vertical C-C can only be increased by decreasing the height of the waveguide.Did you mean decreased C-C distance? No it doesn't, IMHO, but what you show is only mildly asymmetrical anyway.