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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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It is so funny. As Kitty and I are looking for different
houses we look at different listening rooms and we have different ways to think
about room sizes. She think about space for her piano and size of oriental ran
she would drop on the floor. Wh...
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Wow, Josh, that's a whole lot of writing! Truth be told, I did not read it all, but I see (and hear) the back-horn. Hard to believe after all your experience that there is still "more" out there, but maybe you will also find time to read extensively...
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This new speakers from DeVore look interesting, though subwoofer could be better. I wish they were sealed box, but this is what it is. Unfortunately there is no chance for me to listen to them, but I'm willing to hear your idea or anyone who had chan...
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This Polish guy has an entertaining site with lots of own reviews. Looks like he now offers Lampizator horns: http://www.lampizator.eu/NEWDAC/Lampizator/NEW__LAmpizatOr_Speakers.html...
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Oops sorry, I just re-read you post and you did said the “cub feet”. I read it as “sq feet”… so it came from it… If I have 12,000 square feet I would defiantly build a nice sleeping place for my Koshka inside a 50Hz midbass horn… That is one of the r...
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I am not selling BR (honest), but if you - a horn guy - think about running a 150 Hz horn down to 150 Hz, perhaps that would put this into perspective.As one who has heard only "horn-sounding" horns, if I ever get to making some horns it will es...
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KeaAudio. I think we are taking about different things. I was under impression that Goerlich speakers are really sandwiches – layers of aluminum foil inner-layered with plastic. Yes, I am not a big fan, in fact an opponent, of rubber shrouding for h...
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I have never heard of any woofer that manages 50Hz lower cut off frequency in a horn arrangement. The simple fact is that a woofer does not emit sound under the resonance frequency (that is without artificially changing that, ie active). The resonanc...
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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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[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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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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Sorry for the dutch language but I posted my project and pics there....I think the photo's will tell the story...hope you'll like ithttp://www.htforum.nl/yabbse/index.php?topic=112675.0Regards,Arno...
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I had the same problem with my 6 foot, bass horns , which were built from 3/4 inch high density fiberboard. On doing some measurements back then, it turned out that they were vibrating for a few milliseconds after a pulse, giving a decent rise time b...
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Well, this paper on front-loaded exponential horns is rather
interesting, I think. Since some Greek symbols and simple equations are
used, I allowed myself to present here my understanding of this paper in
the form of the following picture. Of ...
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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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Hi Jeff,I am certain that the best midbass was NEVER in a corner horn. Every fold in the horn is a new resonance. Corner horns need many folds...In addition, if you are very "anal retentive" about phase alignment - how do you integrate a corner horn?...
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The closest to date I overlapped cones and horns myself was waaaay back in my time with Altec A7s. But I have since then and up to now heard many fine "hand-offs" from cone to horn, and my current project speakers hand-off cone to (very fast/short) h...
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hello everybody
I am interrested by manufacturing this type of multicellular horn and I would like to know who you would parmit the worksheet for this type of cab [url=http://www.servimg.com/image_preview.php?i=1172&u=11328848][img]http://i55.ser...
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Hm, somebody did take time to do it....
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I was pitching before that to make a loudspeaker with integrated LF module you have no ethical right to charge more then let say $20K retail. If you charge more then you have no mechanism to deliver anything for the money people pay. However, if you...
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Hi Romy, As a recent convert to horn-speakers I have greatly enjoyed trawling through your website and I have learnt plenty not only about horns but also about questioning my own motives and the desired end result of a possible "from scratch" spe...
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[quote user="jeff1225"]Yes Rommy I agree with most of your comments above. What I found interesting in the larger installation was the time alignment and the bass implementation. I do disagree with your statement of not stopping by to see the Hornfab...
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I understand all disadvantages going digital.
I strongly believe that minimal influence to the signal is the most important aspect.
And influences in digital domain are usually terrible.
But I'm not sure what other options available....
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[quote
user="kodomo"]I don't think you can align the tapped horn. My tapped
horn has a total length around 5 metres. To time align that with my other drivers,
its got to be around 5 metres closer than others. The only other solution is
delaying t...
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[quote user="Paul S"]Mura, it sure seems like a good 12" driver would be OK above 300 Hz. So, what's up?
Best regards,
Paul S[/quote]I'm not sure that it is driver issue. May be 42hz horn equalization is effective only in 70-300 range.Real measure...
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Romy
the Cat wrote:
Well,
you need to define what does it mean “can't oper...
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Romy, thank you very much for very detailed explanation of your horn theory.Let me present some doubts about it. From physics basics when we have more than one springs (suspension, throat resistance, back chamber) we can consider it as one spring. Th...
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