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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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This is the text that John posted a few years back at Triode Mafia. John allowed me to post it here warning that he have learned more about tapped horn since then and hat his opinion might have changed since then. -- *****************************...
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Here are some real world measurements made at the 2007 NYC sub shoot out. The distortion numbers and characteristics should help us understand the difference between tapped horn distortion and conventional front loaded horn distortion.
The fir...
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Above I was discussing the new integration process I used to mate the tapped horns with the rest of the system. Below is a graphic to help explain the listening arc. I just moved the tapped horns along an equal-distant arc until the phasing of th...
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Since I started this thread I have received a number of emails from people bitching that I do not like this, criticize that and that they can’t figure out what I do like. I reply to them invariably – “Do not read my site as you are too much a Mor...
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Battling horn criticism is the very same thing that battling audio superficiality, lack of serious criteria about audio and ignorance aboutthe phisics and geometry involved. The really annoying thing is that audioworld was ,in his early developement...
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Dominik wrote :"...Its sounds very good, but how to calculate oval profile. Above project comes frome tractrix calculator with one Roomy posted. There was "auto cad option".I found "auto cad guy" give to him those numbers and he make all drawings in ...
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This is a good example of a CNC horn. This is the Carfrae I was talking about. MDF Upperbass horns are made in sort of the same way, but you do have to cut the angles on the Lathe. (or leave the steps like a The thing is it is not really tridimensi...
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Hello,ich made a new construction,three new constuction featuresbass horn mouth distancemembran movement cross settingframe horn mouthFrame double horn for 8" fullrange driver,back driver again the BG20 von Visaton,also invers montage with +- change ...
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Jessie’s comments about my idea to position midbass straight horns from basement, upper- firing and his warning that the horn will get converted into a giant garbage can made me to think. I did not think about it but it is a reasonable concern. Hypo...
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RobertAren't those meant to be driven by 250W SS amps ? Did you chose driver for your midbass already ? I thought that for this range 8" Lowther DX series with its 50Hz Fs and its "lean" sound could compliment your GOTO drivers (16 Ohm version has 3m...
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I've been doing a lot of research on how a properly designed horn works
(from initial Western Electric designs to present day efforts) in order
to get a real grasp of what will and will not work. I've read and
saved hundreds of papers and de...
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Your experiments bring to mind the excellent results Jeffrey had with his half horns:http://www.goodsoundclub.com/GetPost.aspx?PostID=7467&Phrase=VSACIt is also good to hear that you have an "assistant" Jessie.Very good indeed....
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[quote user="jessie.dazzle"]Wow, 6 x 15" drivers (!!!); though the curved profile certainly imparts rigidity, I'm guessing this horn must resonate more than a bit (no bracing until the mouth) -- but I like this thing.
Interesting, the phase plug-lik...
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We in New England generally and in Boston in particularly are not spoiled with ingesting insulations that use horn-loading. I do not thing we in Boston have any industry dealers that have electronics that might work with high sensitivit...
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hi rony!sorry for the late reply, my job....i did not start to build the horn, working on a phono stage for a friend. will start to build the 60hz horn in about 2 months. all calculations are done, should be no problem. will be made of layers of plyw...
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[quote user="Vasyachkin"]the horn looks suspicious.[/quote]
my issue with it, though, is not the discontinuity in the curvature but rather overall dimensions.
it looks too wide to be a slot. this is a product that is supposed to work at 20+ kh...
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The current suggestion from GOTO is to crossover at 200Hz with S150 horn. Of course, you can crossover higher but what are you going to use to cover 220Hz down? If you choose to use the bass horn, you do want to keep it crossover low.&nbs...
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So, you use DCX 2496 for deals but not for crossovering and your crossovers are still on analog domain, right? Romy, I do everything in the digital domain so I use DCX 2496 as my crossover as well (but analog SS pro amps). I know you're no big fan of...
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its easy to calculate with hornresponse, it can calculate the horn with exponential flare on all sides or with 2 flat sides or with "uniform flare on all sides. you can choose width-height of throat and mouth. if you wish, i can mail you the modified...
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Hi, any photos or progress reports on your 60hz horn. If you wouldn't mind exchanging an e-mail or two I could use some help with design of rectangular horn for my Altec 515s??Thanks,R Weissmanronyweissman@hotmail.comLyon, France...
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Rakesh,Thank you for your kind remarks. I appreciate the close scrutiny you have given my previous post but I think you are at a stage of system design where many basics of your system should be considered and evaluated before the issues of my po...
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Hey Romy I read your requirements of a mid bass horn. I am using jabo tratrix KH-55A(320hz) with altec 288 and I want the mid bass to go under that. I would use a trattix round midbass if it was possible. But it's just not with in my abilitys to buil...
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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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WTF Roman , you trumpeted this as a very nice and sensible solution and now you suddenly don't like "LA Profile" ?....
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Just new to this forum and there is so much to absorb.. One post I read suggested that horns be constructedwith dimensions to suit 1 oct. below the lowest Freq. to be used. I know that Mr. Le Cleache favours this ashe says the group delay is bette...
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That's horribly disappointing for now but I think Jessie is right.Firstly, as you essentially said, I wonder if the horns are coupling into the room such that you actually have much bigger devices than you thought... you are actually sitting inside t...
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[We are faced with a situation of unwanted noise that is coming from a rock concert at the 100 meters away from our place which is about 200*200 meters area , the power of the noise at my place is about 90 db . the noise source is being broadcast e...
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Hello all (from Thailand)!I found this very intersting horn society here by accident and would like to show and share my first experience with horn speakers system.It's consist of 4 way system .[IMG]http://i245.photobucket.com/albums/gg69/krairerk/hi...
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Romy's quotes in blue :"...Discussing the Jessie project we multiple times mention the idea of the large midbass horn hanging above MF section... The rational was to have it positionally contra-react the output of the upperbass horn... But do we au...
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[quote user="oxric"]If it were me and I had that basement that could be made use of, I would seek to achieve what you have done with your mid-bass horns in the loft. I know that you considered and dismissed the tapped horn idea some time ago but ...
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