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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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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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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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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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[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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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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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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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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N-Set,That is a really interesting point for designs going forward; one step further would be to vary different materials for each layer. Microsoft Excel has an easy random number generator to automate the thickness calculations. Actually getting tru...
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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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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="oxric"]If it were me and I had that basement that could be made use of, I would seek to achieve what you have done with your mid-bass horns in the loft. I know that you considered and dismissed the tapped horn idea some time ago but ...
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Today a guy I know from south coming to my listening room to hear my payback. He is mingling with horns, he heard my installation in city and he is very much interested to hear my new listening room and the most important my new midbass horn. He actu...
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Hi Romy…and fellow audio nutters. I’ve bitten the bullet, and shifted from BLH to front-loaded. Yes, I was an idiot, a moron for not doing this sooner. My project is ‘humble’ by Romy’s standard…but I feel it meets the following objectives I h...
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Drawing of dual LF bass horn.Romy, here's a sketch of how I might be able to build the LF bass horns...per my post above.Regards....
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Yep, a nice horn design. I like hos they have a mid-range to
have the similar footprint/size and a lower channel. I guess a mid-range runs ~60
to 800K, wonder what driver they use in there. The upper range horn in a
typical “clitoris position”, le...
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I have identified a direction for my next speaker system. Whether it is a good one or not is a different topic -- I think it's a good one because I've lived with my current horn system for 10 years and have since developed an understanding of it's st...
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I have identified a direction for my next speaker system. Whether it is a good one or not is a different topic -- I think it's a good one because I've lived with my current horn system for 10 years and have since developed an understanding of it's st...
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Hi All,This is my 1st ever post, but extremely disappointed I never came across this site beforeHere is my current setup, for which I'm desperately seeking some help from fellow membersCabinet - Layered Birch Ply with curved sidesWoofers [93.67dB]- 2...
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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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Wonderful horn, Chris. 160Hz is very-very interesting size for using S2 at it bottom knee for a lover mid-range channel. I when to 250Hz (I did not go lower because some my own reasons) but I think the 180Hz should the perfect frequency. With damping...
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Hi there
I can see Romy's face when he's trying to figure out Martin's time alignment strategy;0) I have Martin's 204 Hz horn with Fostex 208 E Sig. These horns are to be big to properly integrate with anything. They are OK with Fostex Lowther drive...
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Sorry to steer away from Harley, but have you Horn guys ever tried different flare terminations? That is, the boundary condition where the mouth and room meet. I once saw some interesting stuff done on large radio antennas that improved g...
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[quote user="skushino"] • total horn length (incl. back chamber) shall not exceed 1,00m • the horn shall have conical approximation of a hyperbolic flare contur with m=0.6 • the horn shall have a 5/16 mouth size of a free space horn •&...
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