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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Well, I just placed an order on the 505TT and S150 horn last week... I came across this site after placing my order and now I'm worried about the mismatch of driver/horn. It seems like I'll have to either change the horn or the back chamber. Romy, is...
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Ok, Andrew, this is allergy something. I would highly advise you in future before you post any discrete updates, questions, and ideas about what you to inform about the holistic objective of your project, sort of a view from 50.000 feet...
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[quote user="ulf"]A few years ago we discovered the tractrix horn for MF use. It was really the most important improvement so far. No more honking exponential horn sound. The improvement was so clear that A/B testing was not needed. [/quote]
For wha...
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I go for tractrix because:"I know that if I done
everything properly then any profile in my room I will be able to make
to have right Sound because I know what and how to listen and I know
how to react upon the heard."I dont. Yet..."with 100Hz Tra...
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To save people from researching the differences between Romy's and my systems, I'll note the principal differences here, ignoring our ongoing mid-bass projects, which will be different, but both are incomplete, so not yet in the picture.As concerns t...
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1) OK2) mdf3) a)LeCleach 115 its too big (where to put mf and tweeter... ) b)spherical vs rectangular "The spherical horns integrate better with high-range and image way better the thier rectangular brothers" c)and one more reason but it is ...
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Wojtek, Yes, too late. Once you've heard a good "stupid horn installation", there's no going back is there?
Yes, something similar to what was shown in Jeffery's GOTO installation. It should work the same on the floor or ceiling, (...
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I understand that "nothing changed in the horn dimensions if you go from between 10" and 12" driver". You are referring to the horn mouth I assume. Do you have a idea what compression ratio is good to have for upper base horn? It seems that 2:1 is ta...
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[quote user="Romy the Cat"]
Considering the conclusions of my recent experiences that I described in the following thread:http://www.GoodSoundClub.com/TreeItem.aspx?PostID=6876I would like to share some of my observation that the people who would g...
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Here is the detail for throat of 110cf tractrix
...
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Hello Romy, thank you for the answers. Your horns have a round mouth, but their profile is not spherical. That is the profile of the Avantgarde Horns you formely had - apparentyl you have anayzed them intensively, could you elaborate what problems yo...
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IME (i.e. some pm's one dx), the Ex-4 sounds the most civilised -- and this, only up to ~10kHz or 1-2kHz lower.It doesn't sound bad in a tractrix, unlike Paul S' experience with a dx4.A horn is also useful to provide some extra spl (106 spl at 1+m wi...
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and especially "perfectionists" markets like Germany. Sound is of a secondary importance. I bet the new driver from Cesarro will be field coil driver because that's what peoplewant NOW. They want "the best" and field coil is now the best. Roman , som...
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...is a most admirable quality. As an elder who has found the quarantine couchexceedingly pleasing, I honor your enthusiasm. However, much can be said for the wisdom of studying eluded to in the above responses. So, in your large horn you do not nee...
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John Inlow uses exponential and tractrix profile horns in his current system. So I don't know what you are trying to say negatively when it comes to "mixing" exponential and tractrix horns. Second, after reading Jorge from Austin TX response I...
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Well, as many know I consider most of Goto users are mishugina. They might like these Goto drivers but what made then to stay with Goto hyperbolic horns is beyond me. They are HF drivers and hyperbolic has acoustic impedance jump at the end of the ho...
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Why dont you use your midrange horn with the JBL from 600hz to 4800hz? I think it would have a fairly flat and good response and tt wont be beaming. It works with the tractrix 1000, I have done it before. I then tried my Radian 475be with JMLC1400 fr...
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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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A mix of conctrete and steel skeleton is a very good mixture, particularly for the upperbass horn. BTW, go not be “disappointed” that you did not go for Tractrix. The Tractrix has many advantages but for the range where you operate I hardly see any a...
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[quote user="kodomo"]Here is my response for the Supravox 285-2000 in 110cf tractrix. I designed a sealed chamber and with the qtc 0.707 it is tuned to 160hz. However I hope the modified version will be even better![/quote]I think that Group Delay an...
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As far as I know much of this development was done using the original S2's. With the mid horn he's using, perhaps both the old & new ones need some augmentation that they wouldn't need via a shorter tractrix. However, I don't think Kevin is convi...
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Come on, Dominik, no one cares about the LeCleach for bass. You might consider slower opening profile: like exponential of hyperbolic. Exponential will give you a bit more horn gain at bottom and hyperbolic will give you even more gain. Hyperbolic wo...
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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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Stereo Lab, to whom Romy drew attention at the beginning of this thread, offer their products on Ebay at what seem to be reasonable prices. See here (http://stores.ebay.co.uk/Stereo-Lab)Looks like the small horns are made of artificial stone, whereas...
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Romy,
More to come soon but a couple comments regarding bass horns ( and one on Tractrix horns ) :
The Edgar Seismic subwoofer ( 18" JBL E155-4 hyperbolic-exponential folded horn, 40 Hz Fc ) works very well in my room - much better than the 1...
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A tractrix and a exponential horn was compared in a AES paper sometime 1950-1970, I dont remember when exactly.
The two round and straight horns where made with the same theoretical cut off frequency, something like 100Hz, they had the same mo...
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All below is written by Thomas Dunker
Yeah, "sound consistent independent of signal level" is a very precise way to sum up my whole speaker philosophy. Anything that is assumed to be constant, but which actually changes with signal dynamics is what ...
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[quote user="T3GGG"]Romy, what is your thought on using a Tractrix flare on a Midbass horn, Fc 140HZ then maybe a Le Cleah horn above, say 400hz. To me this looks on paper to be the best of both worlds and avoids the 1metre plus midbass Le Cleac'h ho...
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I’m glad you talk about geometry, but to respond to this I have to refer to other brands. I will only talk about facts and hope it’s not offending anybody.My basic point is: the flare rate has to be coherent right from the entrance of phase plugs. In...
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[quote user="Blaukopf"]
Hi everybody, after reading RomytheCat's Macondo Setup I am very impressed ( phantastic music room ...) . Presently I have no working horns ( they are boxed), just questions. First, Romy describes his horns as spherical. La...
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