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In the Forum: Horn-Loaded Speakers
In the Thread: Macondo’s Midbass Project – the grown up time.
Post Subject: Simple and brilliant jamming of horn.Posted by Romy the Cat on: 6/26/2010
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Today a brilliant and insultingly simple idea come to me. I was thinking about the way jointing my sections. The horn probably will be made by 2-3 sections, plus the transition please. So, the section jointing flanges are usually made. I probably go for metal flanges and some kind poliutherine glues with a heavy bracing above, belong and across flanges Nothing exiting.
However, let see into the subject of sections a bit deeper. Why sections are problems? Because it is very difficult to make section’s joins that would have the same speed of propagating sound as it is across the section. So, what happened is, even the section joint is very good done, the joint acts a termination of transmission line and create own virtual resonating chamber. In practical term it made each section to “shake” and bit differently as termination of each section acts as own “micro mouth”. Why it is not good? Become it destroys the uniqueness of tone and create a generic tonal filth.
So, the common rule is to beef up the joints but I propose more elegant approach – to jam the horn by spreading the possible “micro mouths” vibrations. To do is very simple – slice the sections not perpendicular to the horn axis but at angle. By doing this we will not join two parallel surfaces that are perpendicular to center of horn but we join two positive and negative angles. Since pressure wave propagated in horn along the center axis, then it will “softly” enter the section join, not to mention that the join will be spread across larger surface and the sections’ “micro mouths” will be jammed.
Folks, I do not want to suck my own dick, but I feel it is a wonderful-wonderful idea.
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