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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Two things I see with that horn. The ribs will have an effect on dispersing internal reflections, positively I'm assuming.The second thing, the ribs are causing a fairly substantial increase in surface area inside the cone, it has the surface area of...
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Romy wrote:"...a chassis designer told me. It is now possible to buy normal efficiency drivers with low mechanical loss..."Sure it might exist, but I question the application.First, a bit of the obvious:Consider only the driver; not the amps and rela...
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op.9,
to put your comment I perspective it is necessary to know what surface you had on your Lecleach horns before. If you search the site (use world textured or structured) then you would know that I am a vocal opponent of smooth surfaces on horns....
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thanks I have a few questions to ask if you do not mind:
1) Did you experiment with surface of the horns and a negative contribution of smooth surface to Sound?Smooth surface are fine don't waste my time on a trival matters.
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Ronny,
You can look among those two threads.
http://www.romythecat.com/Forums/ShowPost.aspx?postID=6436
http://www.romythecat.com/Forums/ShowPost.aspx?postID=3710
I do not feel that for midbass horn a surface makes...
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Ok, the 7th sections are almost done, it will be 3 joinable sections: 7+6, 5+4+3+2, 1 + back chamber. The first two will be glued permanently what the horn will be upstairs and the last one will be disassembleable, if I decide to go for smaller mouth...
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Ok, the front baffle is ready. As I said the front baffle, the surface where the diverter will be attached, ingrated with the first section of the horn. You might judge the solidity if you wish – it is 5 layers of ¾ Baltic birch + 1 layer for front ...
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Enduring a quite aggressive schedule to the end of the month to finish the horns, I realize how much work is still ahead. As now both of the horns are built. They are no prepared to be painted yet and second skin is not built. This notion that ¾ laye...
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[quote user="Kcct82"]
Hey Romy,
Goto makes 12" and 15" woofers at 100db. I recently found out they make a small two way system using an 8" woofer. The 8 incher's range is 55hz-8000hz so I'm thinking it might be a good candidate for use with 60Hz h...
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Here is a better shot of Ulf's horn... In this image, the object on the right is the core of the mold, which corresponds to the inner surface of the horn :
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Jessie wrote :"...In the case of the system I am building, one can happily sit straight in the firing axis of any of the horns without experiencing the above-mentioned unpleasantries... No cringing (and this while using the older metal diaphragms). T...
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Well, I have a theory that the rough surface may be helping to attenuate multiple back-forth axial reflections, but from what you say, it may be that it results in - what's the proper term? - irregular as opposed to laminar flow at the surf...
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[quote user="Romy the Cat"]Ric, I will not be using sand for decoupling. In fact I fill that sand is not good load bearing decoupler as I will have more or less point loading and sand will not work. I will be using sand for damping the horn surface, ...
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You need to insulate around the horns. The attic around them will take on the outside temperature. The wood surface of the horns will be a poor insulator. Without insulation, it would be the equivalent of having a wall in the room without insulation,...
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I am more and more inclining to finish my horn in the textured paint of the color of my room. However, lately I have another “idee fixe”. My listening room has a very pleasant light pattern, something that was here before and something that I added. ...
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Ok, here is another subject. I feel that I kind of screw it up as I did not foresee it in my planning. What I need is to add some decupling devised to my horn in the location where it will be mounted to the surface of the house frame. The horn will ...
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[quote user="Romy the Cat"]Ok, here is another subject. I feel that I kind of screw it up as I did not foresee it in my planning. What I need is to add some decupling devised to my horn in the location where it will be mounted to the surface of the ...
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It is hard to see from the picture but the inner walls of the horns are not parallel. In fact there are no two parallel surfaces in the horn – that was the requirement. Some when any kind of roll lays on the section 2 or 3 surface then it is expected...
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For horns mounted on or near the floor, we have a phantom image below the floor plane. In theory, this means we could make that horn a half circle or similar, with a tremendous advantage in real estate. The theoretical advantages of reduced diffracti...
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[quote user="decoud"]Why not enclose it in a horn shape? After all, it makes sense for the facing surface to be circular rather than square, and a cone will have the best structural properties, as well as having the closest kinship with the rest of t...
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Murat,
I am not qualified to talk credibly
about Tapped Horns. I know that they get a lot of traction now around audio
people but I am, without listening a good example of it, am not so warm to the Tapped
Horn idea. The comments of yours that y...
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I initially meant to put this post into my midbass thread (linked above) but then I decided that the subjects is self-important and it worth to separate in standalone thread. In fact this idea was formulated to months ago but I was holding to po...
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[quote user="Vasyachkin"]
compression drivers are the way to go as far as i am concerned but obviously performance depends on the horn lens.
my beef with ET-703 is that i don't understand its horn or whatever it is. if not an explana...
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(..in between errands..)In respects to whether or not using both the front and rear energy will work, I will have to listen for myself. As I commented earlier elsewhere in this thread, an arrangement using two drivers may prove to be the better...
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KlausMartin (Azura horn ) is making for me extension to 2.75" (BC 8p21)and 1.4" for 204 Hz (altec 288c) .He also developed 550 hz horn for S2 . He understands importance of smooth driver -throat transition . It would be ready to go solution for...
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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 thir...
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[quote user="Markus"]I can't really make it out on the photo, but it looks a bit like a Tannoy Supertweeter.[/quote] Yes, it is but my interest is not what kind of brand he used but why he would need an additional tweeter in the first place? The mult...
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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 ...
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The brickish finish does not make me cringe, in fact I do like the idea. I do not feel that it would be some kind of non-truths. There is no truths or non-truths in it. The only a few first feet of the horn will be visible and then it will go to dark...
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Here is the subject that makes anyone who does what we are trying to do wondering: do remover the screw from wood or not. Our leading position is the screw will be removed. We use long 5-7 inch double threaded screws that bund wood stronger than regu...
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