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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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John, I disagree.
No one deny the importance of harmonics and you are right saying that “If a speaker does not reproduce the harmonics correctly, then the tone is not reproduced correctly.” However you are talking about a complete speaker, not...
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[quote user="Marc HENRY"]La Grande Castine will not be as expensive as Cessaro Gamma.
i am sorry but i cannot answer to all questions, for several reasons you can understand.we have tested many drivers since the early prototype of La Grande Ca...
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[quote user="slowmotion"]I'm not so critical as you to open baffles for midbass, tho, in fact I think they can be made to work quite well, if one doesn't have the room for midbasshorns. [/quote]
You suggest that open baffles might be more successful...
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[quote user="Antonio J"] INTEGRATION that's the clue and that's what I always feel lacks in my room, I mean extreme integration, real integration, the feeling that the recorded bass sound has its own boundaries, not my room's. [/quote]
I do not comp...
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Bruce told me last year that he started to manufacture 80Hz straight horns to replace his 80Hz. I was under impression that you refer to it.
Anyhow, if your midbass horn is fine then one of the most effective ways to get it even better is to reduce...
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[quote user="rdrysdale"]….as of now I'm convinced that a compression driver is the best way to go for fast, detailed and dynamic bass. The compression ratio needs to be just right, and the horn needs to be right, when these two are working together p...
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Romy, You have a most different and refreshing way of understanding and explaining audio, sometimes I have trouble following your discussions, but I find your ideas most intriguing. By fast bass, ...
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Hi all
The WE 555 is IMHO an interesting driver, made for a very spesific use,
which is driving a "full-range" horn in the theatre.
As we all know, the wide range system with Jensen 18"woofers and Bostwick tweeter came later, at first the 555 an...
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Here is an image depicting the radiation pattern of the HF for a midbass with and without phase plug. The dotted line represents the HF output. This is not a measured response!Here are a couple of pictures that may be amuzing. My girlfriend and the s...
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...if you want to use it "pure" as it were, without any in-between equalising. Or you could tailor the amp accordingly. I would see a lowther working well mid-high rather than mid-bass.My experience is limited, however, to EX-4 used with wizzer in a ...
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Last time we wrote you thought I should focus less on tweeters and more on midbass.I am not done yet, but I have found a very nice midbass solution. Somewhat unorthodox, maybe.I have come to love police sirens! Without having A/B compared it to a pai...
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lately I've come to theorize that the horn midbass may be a contadictive dead end approach. The reason is that proper horn midbass (lets say 80 to 400Hz) will be a big one and present a few inherent "brick walls". It will physically shade the midrang...
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Hi Gera"Has anyone done this and what were the observations of comparing different topologies."I have done just what you propose, I tried the JBL2490 compresion driver with a 3" mouth in a 110 hz horn well made, MDF round tactrix horn, it goes ...
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Yes, proper upperbass is what I am l longing for. In my current system, folded horn going up to 350hz is not satisfying me and was the starting point of this project. It colors and kind of covers up the sound of big bands and orchestras...
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After all I'm going to construct this kind of mid-bass horn.It is 35Hz, 4.3m long and 1.4m mouth....
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[quote user="noviygera"]
Murat,
I was looking at your midbass horn design and I am wondering, how are you planning to time align that long midbass with the rest of the channels that seem to be time aligned. I mean, currently the midbass is phys...
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Besides hornresp modeling, is there things to think about when starting design and build of midbass channel from scratch? The range I need is 60 to 300 hz. It will be used with 6db/octave crossover. It will be located under my midrange horn -- the mo...
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Say whatever you want but some of the vintage drivers has
it. Not all of them but some of them do and the question how to get it. I
always has been an enthusiast of midbass horn and I am very much the enthusiast
now but there are some topological ...
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[quote user="ulf"]One advantage of the use of a phase plug in a midbass horn is that it will beam less at higher frequenzies than a horn without phase plug. If the phase plug is designed for the specific horn and driver it will help "steer" the HF.
...
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This is terrific information Ulf. Thank you very much. I won't start builing until early december but will post the project here.
Plan to form my horns from microcrystaline wax first, so i can experiment with throat termination. I have a background...
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A visitor of my site, presumably it is someone from GOTO, sent me email informing that GOTO made a new midbass horn. My enthusiastic applauses to GOTO as former GOTO bass-horns were very bad and not serious.
http://www.goto-unit.com/3.html
Pu...
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hello again Romy, cats, friends...
I built this horn for Ming Su, the Goto USA importer... I have posted on your site before about midbass and bass horns... I listen to eight foot straight 45 Hz horns... and as partial payment on this commission ...
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[quote user="MINGSU"] The SG146LD4 driver can play down to 20Hz but we choose to crossover the horn at 70Hz only due to the space limitation of my listening room. [/quote]
Ming, here is the whole point. If the driver meant to be play20Hz then ...
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Ming,
I was thinking about this SG146LD4 driver again. They say: 106 dB/ 20 - 500 Hz, 19,000. Well, let look at this a little bit further as I feel that might be very interesting driver.
I admit I never heard about this driver. All that I know abo...
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"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 for expansion? To shorte...
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[quote user="Romy the Cat"]The subject of midbass nasal sound is very interesting. In addition to all OTHER aspects that might lead to midbass honk I would like to note that there is one that is in my view greatly overlooked – the precision of re...
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Romy,I might have overlooked something on your site but I understand that your ULF amp is driven directly by the preamp line stage. If that is the case, you may want to consider an old technique for integrating subwoofers and drive your ULF amp w...
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From the time of the insertion and setting the proper crossover my midbass is growing and growing, getting larger, deeper and better in all aspects. I am not kidding and now, when I have no ULF channels operational, it is very obvious. I can’t explai...
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[quote user="Romy the Cat"] To my huge surprise and pleasure my midbass horn has absolutely no honk. I heard bass honk in ANY, even the best midbass horns that I heard (BTW, some honk does not bothers me and I even consider it desirable). [/quote] T...
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[quote user="skushino"]Have you considered the opportunity of raising your upper bass HP crossover? How high do you plan to use your mid bass horns? If your mid bass is comfortable playing up to 280hz (or whatever the right freq is), you can use yo...
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