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In the Forum: Horn-Loaded Speakers
In the Thread: Macondo’s Midbass Project – the grown up time.
Post Subject: The Third section argumentPosted by Romy the Cat on: 8/3/2010
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It was interesting, educational and in way embarrassing. Last night I send the directions to my carpenter to redo the third section in accordance to the original plan where the opening of the sections is more consistent. This morning he took the third section down but I asked him do not finish it as we need to talk. We did have the conversation and with all my displeasure I need to admit that I was wrong – the way it was initially built was the only right way to build the proper horn expansion.
Yes, judging only from one side the profile look like narrowing doe but in reality the horn is much more complicated and 3- dimensional. All 4 or 3 sides are expending and they expending not symmetrical for each section. In addition the horn has a minor curve out of the center beam between the horns in order to accommodate the 19” back chambers. So, the only valid analyses about the horn expansion might be done by evaluating all 4 sides or the surface of the sections’ mouths and throats. We did measure the mouths and throats and they are as they had to be according to the targeted curve.
Now I had a dilemma: to keep the horn to look sexy but to have an expansion deviation from proper parabola or to keep it photogenic less attractive but with proper geometry. After some deliberation I asked my carpenter to put the Third section exactly how it was before and paid his extra time to do it. Well, I do deserve it:
BTW, He made a first path today to the first section that will be assembled with back chamber together…
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