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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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My COVID-19 brain fog has finally lifted. I have been using HORNRESP as the gold standard for horn design. Upon reflection I forgot that we ultimately listen to the sound produced and not the beautiful computer simulated SPL profile. So I ...
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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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In reference to:
http://www.goodsoundclub.com/TreeItem.aspx?PostID=1414
I had recently a guy in my listening room and he asked me if it would be possible to get the 300Hz range in the way how it sounds in my room but without using those larger uppe...
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Somebody from AA was asking about electromagnet. The subject pup up here from time to time but this time Bruce Edgar uploaded an interesting comment. Bruce is not a typical AA Moron and if he says “inaccurate things” then it is not due to ignoran...
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[quote user="rdrysdale"] The bass driver will play to about 8 khz… [/quote]
OK, this dose make some since, become I understood you that it droops after 300Hz.
I wonder what made you to select the 300Hz as a crossover point – the currently existing...
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Murat,
I am not qualified to talk credibly
about Tapped Horns. I know that they get a lot of traction now around audio
people but I am, without listening a good example of it, am not so warm to the Tapped
Horn idea. The comments of yours that y...
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Disclaimer: I love listening to experienced people. However I do not do everything they say. I would like to hear them as it can direct me and save me some resources like time and money and make me think of things I have missed and ...
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[quote user="haralanov"] Romy, the actual sound benefit of this 4-channel upper bass configuration, is rather in the type of sound presentation. The commonly used single upper bass horn (or direct radiator) sitting under the midrange horn, gives the ...
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jd, I cannot see any of PDF files, probably my current networks kills them.
I do not know the AK150 drivers. I know AK157, AK151 and K15/40. If they have significantly lower free-air resonance, at 30-35Hz then I am not sure that they would be ...
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[quote user="Macman"]Hi Romy,Its an Altec 416-8A driver in a ~100 Hz exponential horn, Jbl 2441 in 350Hz tractix, Aurum Cantus G1 tweeter and Eminence Definimax 4012 HO in ~30Hz Tapped horn.I just hooked it up and the highs are promising but I though...
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That was the 4 way system designed by John Sheerin using GOTO drivers on my request. The tweeter is GOTO 160 with S3000 horn xover at 5kHz. The high mid is GOTO SG370DX with S600 horn xover at 1kHz-5kHz. The low mid is GOTO 505TT with S150 hor...
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Post #14:
Romy.
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by
CO
on
2007-10-18
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May i ask how far you are from the front of the upper bass horn (on axis) You also mention being in a 'small' room ?Rgs, Collin...
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[quote user="Romy the Cat"]
...this interesting point has no practical answer. First of all in the case of Rakesh horn what N-Set proposed is not necessary. Those 115Hz Hasqiun-style horns that Rakesh emulates are well dumped with own mass and own ...
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I note English Mfgrs tried low power ribbon Midrange horns in the 50's (Decca, Kelly & Quad also made one!).These were probably inspired by the hi pwr prewar? Klangfilm ribbon horn (would like to hear one of those!) But, after Peter Walker moved ...
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Ming, how are you doing? What I mean: how it your bass horn projects doing? We interacted in November and as I understand your horns is few month old nowadays. As now, your initial euphoria about the Goto bass and Goto horn should be gone and you sho...
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Romy, thank you very much for very detailed explanation of your horn theory.Let me present some doubts about it. From physics basics when we have more than one springs (suspension, throat resistance, back chamber) we can consider it as one spring. Th...
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I'm giving myself high fives today for nearly solving the broken piano sound in the room. :-)I'm not sure what fixed it, but I believe it to be a shelf half filled with records + two sofas and a carpet.There is room for improvement but it is a g...
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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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Yes, I see the need for a phasing plug for a 40Hz bass horn. Most people choose to ignore the finer details and claim the wavelengths involved are too long to be affected by phase plug. If someone really understands the fu...
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I find that one of the most interning and stimulating ideas that you expressed was your experience with your bass horn
[quote user="Reinhard"] Midbass horns: are there are two 20 cycle bass horns which normally have 6,50 m in length and 3,20 i...
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[quote user="ayebee"]If you look at the original Bionor drawings (you can find them at klangfilm.free.fr) you see that the "bass" horn is actually made out of two sections, the outer is curved, the inner is conical and expand both horizontally and la...
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[quote user="Romy the Cat"]
Any LF acoustic system has two SPL levels: the SPL of pressure and the SPL of tone.[/quote]Ahhh! Very good Romy. I don't recall you talking about Pressure and Tone SPL before. The tapped horn can be designed any 3 ways....
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Hello,ich made a new construction,three new constuction featuresbass horn mouth distancemembran movement cross settingframe horn mouthFrame double horn for 8" fullrange driver,back driver again the BG20 von Visaton,also invers montage with +- change ...
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Yes, it is certain in what I proposed there is majored disadvantage of having a suspended floor. A suspended is like a bad turntable – no matter what you do you would never be able to get proper lower octave. The idea to have horn firing from ro...
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I've only had the pleasure of listening to 'professional' horns (whatever 'professional' really stands for)--horn normally used in concerts and small venues. (It was always so obvious to me--by listening--that the range of the horn-loaded 'bass...
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The current suggestion from GOTO is to crossover at 200Hz with S150 horn. Of course, you can crossover higher but what are you going to use to cover 220Hz down? If you choose to use the bass horn, you do want to keep it crossover low.&nbs...
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[quote user="Horn Savant"] I think it's about the same as free-air resonance - backwave to entire basement. Precedent: pre-war theatre horns(open rear like Shearer/ERPI)(unlike post-war reflex tuned designs like Altec A4)(I don't like reflex boxes - ...
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I have also noticed this in the past, But i could not say it was from the the Mid bass driver or horn. I was trying out a amp at a friends house with his system and i had this bass softness and i thought it was his speakers but we tryed his own amp a...
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You said are lucky to get hornloading down to 150Hz. Then I guess you suggest you will end up at maybe 175Hz. Hornloading a compression driver down to 175Hz is not too difficult and the horn will not be larger than the Avantgarde Trio midbass horn, a...
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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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