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In the Forum: Horn-Loaded Speakers
In the Thread: Horn length/expansion/group delay
Post Subject: The actual "sonic" part is mostly missing.Posted by Romy the Cat on: 10/18/2010
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 jamikl wrote:
My problem is the length of a mid bass horn and I can see no way of doing it other than bending it in a curve or mounting it down facing to the floor as in one you showed, or going
closed box which I don't really want to do.  I think it is serenechaos who shows similar to what I meant by a curved one in his avatar.

Yes, you might curve midbass as well as you might not use horn-loaded midbass. See what is your room might demand and bare and give it to her.

 jamikl wrote:
I had worked out that the oct. below lowest frequency probably didn"t apply to lower frequencies but wanted to confirm it.  Just playing around with the demeaning part but will give compliments when I think they are due.

The one octave below lowest frequency is not the rule that need to be fanatically followed. This is a concept and it allows some variations. The rule is that a MF horn shall sound “clean” and do not have any horn choking with LF sound. Connect your driver to your horn and being to slide the crossover point up and down. Very soon you will discover your own rule without help of Romys or LeCleaches. Mind you that the proximity of permitable crossover will wary from the crossover type,  th driver, the specifies of the given horn, stereo quietly of your playback  and the horn location in the room.
 jamikl wrote:
I don't understand a lot of the LeCleache and Dr. Geddes stuff either which is why I am here.  Get sick of their constant bickering on those diyaudio threads too.  Like little boys competing to see who can piss highest up the wall.

I would not consider Dr. Geddes as a valuable horn collaborator. He is very knowledgeable fellow but as soon he opens his mouth and mention Sound then he sounds like 5 years old. He might be used as a bouncing board to run prototypes and to see if it complies with very rudimental theory. He is very good in this. LeCleache is also looks like on theoretical side of playback organization but I never read anything from him that would be less dry then it is. If I did not witness the “actual sonic” part of Jean-Michel LeCleache then it does not mean that that it does not exist. I presume that in his world Mr. LeCleache has some kind of installations where he plays with his ideas, I just not familiar with it. Reading a few LeCleache’s articles I would say that I had some points of disagreement or some feelings of irrelevancy rather than to see in Jean-Michel’s writings any signs of pure stupidity.

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