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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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By distortion in the throat I mean distortion caused by the nonlinearitiy of air that manifest itself by high pressures.I dont think this was known in those days.If this makes any significant audible difference in this particullar case I dont know, b...
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Romy, yes it is an interesting subject and one that I have thought quite a bit about although not directly from the angle from which you are approaching it.One of Macondos great strengths is narrow directivity from high frequencies all the way down t...
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[quote
user="Murataltuev"]
What will be your suggestion for upper bass
channel using compression driver ? [/quote]
I do not use compression driver
for bass channel. I would like to have my system esthetically balanced, to get let
say 120H...
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[quote user="Romy the Cat"]
Actually it is not exactly accurate. In the way my Macondo is a magic bullet. If you read carefully old article about Macondo axioms then you will see that one of the major underlying principle...
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Jessie,
When I spoke that I would go most likely for exponential I did not mean the Exponential vs. Hyperbolic but rather that it would not be a Tractrix. I have no specific preferences for Exponential, Hyperbolic or any other long profiles. A commo...
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Robert, what I meant is following: when you will be collecting requirements for you own drivers specification and will evaluate the implementation methods then you need to have you own identity what you are trying to do. I might post a lot of differe...
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[quote user="Romy the Cat"]I am not sure what you are asking. If you willing to get 400Hz horn into 1” tractrix then it might not be any controversy about the horn’s length, it is already given and the folks from lab.de will know it and will do the r...
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My idea is a upright horn like your "midbass hanging thing", at 200 hz for the smaller size of it, and this will be my work for 2009/10. What I would like is exponential curve, not tractrix horn, something like this one perhaps?
this is...
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I set two multicells with LF-enabled S3 drivers. I set them on the outer side of Macondo MF. Playing with crossover, volume and towing of the multicells I was able to a degree to get the effect that would like to get. The pointing the multicell...
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[quote user="jessie.dazzle"]I realize this is off topic, but I would like to address the issue:Rackish wrote: "...Recently I asked someone who contributes regularly on your forum and has a system 'similar' to yours to come and listen to his system....
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time alignment?
why on earth have you got those horns aligned like that?
I have a pair of the same marinelli horns.. 15" wide. stunningly pretty, solid birdseye with tad-2001's.. i'm not impressed at all.
can't wait to put a tractrix or lecl...
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[quote user="KS"]Thats the kind of stuff I was hoping for. I appreciate the help with this, there seems to be a scarcity of horn related discussion on the web and its proving hard to learn the ropes.One other unrelated question that could save me a l...
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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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[quote user="serenechaos"] If I were in your shoe I would take make as you wish but wish a slight correction:
65Hz Tractrix from ~80Hz to ~800Hz w/ fane 8" ( or better driver) 250Hz LeCleach from ~800Hz to ~10kHzJBL 2405 ribbon from 10kHz up
...
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There is a guy named Ad in Netherland who makes looks like aluminums (but I am not sure) horns for 1.5 inch compression drivers. The first picture it looks like an exponential: W=39cm/15.4Inch. L=45cm/17.7Inch.
I do not know if Tractrix and the Fren...
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Hi Romy and thanks a lot for the always interesting topics and discussions going on... I'm quite new to DPoLS and consider the approach of "obtaining sound in a room" more than "speakers positioning" - too often to WAF fullfillment and aesthetics, th...
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Romy,
Just to be sure, I ran all the tests again today, but this time at various volume levels.
I got exactly the same results as yesterday.
To answer your question (sorry it took me this long) : Yes I do use metal suspension on all 4 S2s....
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Ok, I have been experimenting with placement : Long wall versus short wall. Though the frames have wheels and roll very easily, my room is cursed with an elevated platform smack in the middle of everything (about 14 inches higher than the main floor)...
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I'm also of the opinion that the bass is one of the most critical and most challenging parts of playback. Not talking about quantity, but rather the quality of bass reproduction. My approach has been to split the bass in two parts - Low and...
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[quote user="jessie.dazzle"] Once I am done with more of this project, I will make a 330Hz Tractrix to try in place of the upper mid 400Hz. [/quote]
Hm, I wonder what would be the purpose to make 330Hz horn for you if you have 400Hz and a dedicated ...
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Hi everyone,It is quite ironic that the day I hear from Fane telling me that the Fane 8Ms are finally ready, I should receive this update from my horn maker maestro. Russ Collinson of Layers of Beauty. Russ, if you ever read this here, please take a ...
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Interesting, thanks Guy for posting.
Let analyze what was done in there. It looks like well-thought, time-aligned, looks like multi-amped configuration. BTW, how the filters were implemented and what (slope/order) filters were?
To my knowle...
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[quote user="Romy the Cat"]I wonder: does it mean that you will take the rest 28 drivers? Hm, are you trying to research the subject of the drivers’ critical mass or become a speaker maker? Be careful with their claims that they will be “manufactured...
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Jorge, that is good but a few thighs I would like to mention in this approach:
1) What you depict will work with tractrix or conical horn but not hyperbolic curve. The hyperbolic has own “swell” into exponential curve that would make it to...
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The system is still very much a work in progress, but I have come to the conclusion that the concept as such is very, very good. It's only up to me to make it sound as well as I know it is capable of. Making and fine-tuning the crossover might take m...
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[quote user="serenechaos"] "I think the ultimate length of the upperbass horn is 3”- 4” throat. With longer horn it would be very complicated to time-align it as the horn will mask out the MF driver."
Is this also why you use tractrix curve f...
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Hi Klaus,
Spec sheet on the bass driver you plan to use here: http://www.greatplainsaudio.com/downloads/515_G.pdf Just to be clear, mid bass to me means from 60Hz - 240Hz.
Throat diameter : 9.9 inches ?I'm just a beginner, ...
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[quote user="serenechaos"]-Background- Enspired by Jeffery Jacksons system as displayed @ VSAC, I'm building a five-way horn system. [/quote]
How are you planning to power the thing? The amplification pattern will affect the selection of your channe...
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I recently completed some upper bass horns which I'm now enjoying very much. Sadly I lack the skills of someone like Jessie so my efforts are crude in comparison, but they are working well for me which is the main thing.I already had some old frontlo...
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[quote user="Jorge"]I guess it would be simple enough to add a couple of inches in order to bring the throat down to 4" in order to try the Studio 8M. I have already reduced it temporarily to 3" in order to try the JBL 2490h compression driver. ...
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