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Romy the Cat wrote:

I kind of all set with the conceptual ideas how much future midbass horn might be implemented.

I would like to expend a bit about my conceptual ideas, as the folks who advised me in this threaded my find my ideas interesting.

In addition to all that I described above last two weeks, after seeing some houses, I am considering also a smaller room of 600-700 sq feet with two symmetrical windows on the opposite walls. In this case I will be able to use the windows as the entries for the horns in more or less time-aligned position.

The images I presented are out of scale and are juts for sake of illustration of concept. With the horn are positioned in headphones configuration it will be problem with underdeveloped bass as a listeners will be in a mouth of the horn and the wave will be too premature. I have writhen about it before in this thread.  So, how to keep the arriving time reasonable but to make the wave mature on arrival?  Welcome to the idea of the Maturation Shields ™

Pretend that 2-3 feet from the mouth of the horn there is a vertical wall of ½-1.0 of mouth size. It might be sand-fill wooden board on 2-3 thick. It serves multiple purposes:

1)      Mature the LF wave  coming from the horn mouth
2)      Defuse the LF
3)      Masking out the minor  time misalignment by randomizing phases and leased edge of the wave 
4)      Shaping the low-pass filter

There is another purpose that is very exciting. Since the horn are installed “finita la commedia” with room correlation at LF, particularly in small room unless you build 7 feet gall resonators. However, my Maturation Shields have ability to be rotated for let say 25 degree. This allow to slightly re- route the pressure flow from the horn and to write at the listening position the pressurizing pattern that I might wish.

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