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Macman wrote:

Just realised that I had dual highpass filters on the TH, which more or less cut off frequencies below 50Hz entirely. A lot better now, still much to be made of course.

This is very normal. People get the “building plans”, render it in wood and presume that it has to be assurance of some kind of “good sound”. There is nothing further from truth. As the bone of the speaker structure is built you just start to make your speaker. If you are sensitive to what you do then you will go over many events, from very useful self-realizations to openly stupid actions – that all normal and it comes with the game. You need to find a way to properly load and cross your 416 driver.  I am sure your 2441 driver is a piece of crap. All vintage drivers are crap- and they need to be serviced, cleaned, aligned and calibrated to perform properly. Do not be in harry to make any concussions unit you make each channel to operate at its best and make the whole system to sound in uncompromised way. It will take some time and some efforts but that is OK.

noviygera wrote:

I have an Edgar 80hz midbass with a 15" EV driver. I am not happy with the sound I am getting, as well, and I believe it is in part due to the 15", as well as a not proper horn enclosure. But somehow I am sure that for the 100-500hz range a smaller size driver will be more appropriate to integrate with a midrange section, especially if you are using a good compression driver.

I think a conversation about size of the driver has very little relevance. A common colloquialism says: it is not about size but how it is being used. In horns the colloquialism works perfectly fine: it is not about size of driver but the size of the throat it loaded into. The problem with Edgar-like 80hz midbass and the Macman’s 100Hz horn is not the large driver but large throat that has low mouth to  throat ration and do not provide sufficient horn equalization. It still might be made to work very well but it still will have some fundamental restraints.

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