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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Logic, the conversation of JMLC profile vs. tractrix is not a subject of debate of any kind. This is well addressed subject and if you look at my forum then you will find all necessary information. Look for words La-Horn as this is how I call JMLC pr...
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Logic, the conversation of JMLC profile vs. tractrix is not a subject of debate of any kind. This is well addressed subject and if you look at my forum then you will find all necessary information. Look for words La-Horn as this is how I call JMLC pr...
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actually I'm from Iran and needless to say we are stock in the middle of nowhere here (sanctions,...) so we weren't able to hear much of the horn speakers, so we started to think we should do it ourselves because we are able to obtain CDs much easier...
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[quote user="slowmotion"]JMLC made a spreadsheet based on his approach to designing horns, with that spreadsheet you can design almost any kind of horn you wan't to. We should maybe have Jean-Michel describe his theories himself, but I don't th...
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Hi
Some links:
http://site.voila.fr/musique_concrete
http://mailman.io.com/pipermail/sound/2004-May/006297.html
http://mailman.io.com/pipermail/sound/2004-May/006323.html
http://mailman.io.com/pipermail/sound/2004-February/005088.html...
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eyop fellas,Romy wrote: "Here we go! Not we are taking!!! I would not need the S2 tweeter and what it dose now in 400Hz horn is perfectly enough. I would go only for the midbass S2. Something with 6” cellulose diaphragm, low to medium compressi...
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Thankfully, JMLC chose to use english as the common language for he event, not altogether surprising given the many nationalities that probably attended.JMLC writes:
"N°13 : Stereolab tractrix horn + Vitavox S2 driver
...
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[quote user="slowmotion"]JMLC made a spreadsheet based on his approach to designing horns, with that spreadsheet you can design almost any kind of horn you wan't to. We should maybe have Jean-Michel describe his theories himself, but I don't th...
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It is a shame that I keep finding threads about a 300Hz compression driver channel, that ends abruptly. I have been trying with a not-so-exact Goto S-150 replica (~1.7m deep, 75cm diameter mouth), and I know of another fellow in Sweden who tried the ...
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Well, I didn't come so close to answer your question right.I saw a few from the German DIY scenery and for them it was like the return of Jesus, best sound on PlanetBut probably they are still deaf as usual, because the Frequency step ups are limited...
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I found 2490, so very soon I'll test how low it can go in JBLs 1x1m mouth horn designed for 2490.Also I've decided to order 270hz LeCleac'h horn from Poland (http://horns-diy.pl/horns/jmlc/jmlc-270/).If it works well with 2490, I order custom 240hz f...
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Jean-Michel Le Cléac'h is RIP and it is not a good idea to
talk bad about dead people. However, it is not a personal commentary against
Jean-Michel but rather my attempt to point out a huge harm that he did with his
idea of what I call La-horns or...
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I have been working on my system. I post sparse as I need to listen a lot before doing any changes or decide on anything.I have changed the 1000hz JMLC horn to a 1400hz JMLC horn and the results are better. I have better integration with the Fostex t...
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[quote user="Stitch"] Well, I didn't come so close to answer your question right.I saw a few from the German DIY scenery and for them it was like the return of Jesus, best sound on Planet But probably they are still deaf as usual, because the Fre...
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To make the story short :) Autotech is a family business located in Lublin, Poland. Younger brothers graduated in mechanical engineering are cars and racing lovers - with scores in Europe as professional drivers and mechanics. One year ago Lukas wrot...
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[quote user="jzagaja"]To make the story short Autotech is a family business located in Lublin, Poland. Younger brothers graduated in mechanical engineering are cars and racing lovers - with scores in Europe as professional drivers and mechanics. One...
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Tuga,I do not know what JMLC had written in that paper – I can’t read French but from looking at the pictures I might only presume that he was trying to prove or disprove the Point Source idea by looking at the souses live sound vs. recorded-and-then...
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Ah yes, sorry - that wasn't remotely clear. The drivers I have played with briefly are S2 and field coil RCAs, both have the same 1.5" throat. I was referring to my initial impressions of the sound on Martin Seddon's 160Hz horn (T=0.8 JMLC). Previous...
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eyop fellas,Romy wrote: "Here we go! Not we are taking!!! I would not need the S2 tweeter and what it dose now in 400Hz horn is perfectly enough. I would go only for the midbass S2. Something with 6” cellulose diaphragm, low to medium compressi...
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In my first design, I kept them all in a vertical line. It had one channel less back then. When I added the 1" throat JMLC 1000, I decided, as the tweeter operates over 9.6k, the slight misalignment may not matter. Still, I kept vary and kept the fra...
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[quote user="cv"] I gather the Acapella plasma tweeters have a catalyst so you don't get the nasty oxides/ozone etc. Got some old ionofanes on the way so will know soon how well they freshen up the room... They are self-amplified so efficiency ...
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AlloI had a theory that the bug screen was helping to damp horn modes/refelctions caused by a mismatch between the S2 internal flare and the horn flare rate. I have 340Hz flare JMLC horns, which may be expected to give less of a mismatch than the sma...
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[quote user="cv"] The acoustic transformation's probably done by the time the wave reaches the throat. [/quote]
Yes, it is. If we loom how the S2 internal channel done then it would clearly indicate the it should not be a great tweeter but wha...
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Hi Romy, all
Romy wrote:
" Are you saying that the JMLC curve could be shorter then tractrix to the same flare rate? "
JMLC made a spreadsheet based on his approach to designing horns,
with that spreadsheet you can design almost any kind of...
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Hi Romy:I would like to wish you and all those who contribute to this forum a very Happy New Year 2011. In addition, I would like, and I would be so reckless as to presume many of your readers/contributors feel the same way, to express a debt of grat...
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I had exactly the same thought...They're "elliptical JMLC" horns by autotech.pl. There are some threads on diyaudio, including:http://www.diyaudio.com/forums/group-buys/166312-waveguides-horns.htmland they have a website showing their myriad options ...
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actually I'm from Iran and needless to say we are stock in the middle of nowhere here (sanctions,...) so we weren't able to hear much of the horn speakers, so we started to think we should do it ourselves because we are able to obtain CDs much easier...
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Yes, Rakesh, thanks. I do not know if it is interesting. I look at this report and his findings and I do not know what it all means. It certainly gives a relevant perspective on different drivers but I do not think that it gives any quality perspecti...
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Hi Murataltuev,I have two horn based systems but the system that is similar to yours or Romy's is the one I am currently building. The drivers and horns are as follows.38hz - 160hz - Tad 1601b - Bass Array (4)160hz - 600hz - Supravox 285-2000 hornfab...
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There has been some changes, so here is an update;38hz - 160hz - TAD 1601b (2 on each side) - Ported cabinets160hz - 600hz - Supravox 285-2000 Hornfabrik edition - cf110hz round tractrix horn600hz - 4800hz - Radian 850pb 2" cd - cf200hz round tractri...
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