|
|
| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
|
|
 |
|
|
|
|
|
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...
|
|
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....
|
|
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...
|
|
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.
...
|
|
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...
|
|
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 ...
|
|
[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 ...
|
|
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...
|
|
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,...
|
|
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...
|
|
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 :
...
|
|
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...
|
|
[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...
|
|
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. ...
|
|
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...
|
|
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 ...
|
|
[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...
|
|
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...
|
|
[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, ...
|
|
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...
|
|
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...
|
|
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...
|
|
[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...
|
|
[quote user="haralanov"] Take a look at the video: [/quote]I am not sure why you keep bringing the Vengerov’s video again and again. It is quite banal things and those infomercials of Vengerov educating in front of camera the sentimental girls ho...
|
|
Bill, the result you or anybody else gets with resonating surface of the horn if NOT what I was talking about. You and Jessie recognized in what I was saying some specific problems of your horn but those problem are from very different reason. The t...
|
|
I was pointed out to the fact the Magico has a new idea of their 5 way horn-loaded speaker. I did review the Magico former 4-way project, it was very bad:
http://www.goodsoundclub.com/Forums/ShowPost.aspx?postID=2103
The new one l...
|
|
Kea Audio, Regarding the driver. When I meant hard suspension I meant low excursion. Acoustic pressure equals displacement by volume and displacement equals surface by excursion. In horn we add the horn EQ, so for a given frequency we might have lowe...
|
|
I see some posts predicting that the use of bronze for the Mid-Range horns (see photos above) would result in ringing... Well, I respectfully beg to differ; I think this is one area where the designer may have done well... Too bad he polished them.
...
|
|
[quote user="haralanov"]Ironically or not, I have no practical problems with it, simply because I’m not using big UB horns. My upper bass channels are much more compact – 4 very massive 15” drivers with no horns. Their integration to my main widerang...
|
|
[quote user="haralanov"]Come ooon, comparison between the radiating area of direct radiator vs. the area of horn’s mouth is too amateurish even for some diyaudio.com level simpletons… It is as naïve as saying Leonardo’s Mona Lisa is simply 100 grams ...
|
|
|
|
|
All context of this site except the Forum's posts
Copyright © Roman Bessnow 2004-2024
All messages within the Site’s Forum Copyright © by
authors of the posts
|
|
Last 24-hours posts: |
4 |
|
 |
|
|
Total human visitors: |
42,947,918 |
|
|
|
|
|
|