Rerurn to Romy the Cat's Site

Yes, Gregm is right we have no idea what is behind the bottom “bulge” and therefore any speculation and accusation are “correct”. Nevertheless, from what I have tried, if I “design” this horn and had a desire for whatever reasons to preserve the “bulge” then I would do following:

1) Reverse positioning of HF and MF horn
2) Set this axes absolutely parallel of the upperbass horn
3) Lowpass the MF horn more aggressively, though it looks like it is low passed good enough, looking as the mouth of the HF channel.
4) Put another identical MF horns at the bottom of the upperbass horn introducing a MF only vertical MF offset
5) If do not go with MF too high (stay below 5K-6K) and if to be lucky (the distances are very important) then it would be possible to acoustically join to top MF and bottoms MD channels and to create a new virtual axis for MF the might be on the axis of the upperbass channel. Then, sine the HF horn site very close and is “in” the MF folk, the speaker might be used in more or less nearfiled application.

I have to admit that parallel vertical horns are controversial and very dangerous thing to play (all sorts of problems) but if they work then they work… Sure, the lower we do in frequency the better the vertical parallel sources work. It is the relations between a given distance and the wavelength. Still, sometimes it is possible to catch something on the murky  water of self-cancellations…

Rerurn to Romy the Cat's Site