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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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[quote user="haralanov"]I think it is very interesting subject and I’m looking for first hand opinions by people, using properly sounding upper bass horns in their listening rooms. I’m not interested in theoretical opinions – only by opinions, co...
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Jessie,
I was about to replay to your post and suddenly John Hasquin posted his reply that said exactly what I meant to say. In fact he has much more credential to assess the validity of you attempts then me as he actually build the horns. In additi...
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Greetings,
I may be able to answer some questions regarding crossovers, multi-amping, etc. - without getting bogged down, hopefully, in metaphysical issues.
First off, I live in San Francisco, if he's inclined 'drdna' and other locals are wel...
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1) If you decided to use the 12” JBL 2206H driver then I doubt that you might talk about 4” throat. A 12” driver with wide outer suspension might go with 7”-8” throat. The 6” might do, though it might be a stretch....
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[quote user="jessie.dazzle"]Hi Klaus,
Spec sheet on the bass driver you plan to use here: http://www.greatplainsaudio.com/downloads/515_G.pdf
[/quote]
got it, thx. used this data to simulate in hornresponse,looks very promising. but i know...its ...
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[quote user="coops"] Cessaro will be playing …. the full Gamma system at next years Munich show….[/quote]
Since I promoted the Cessaro Gamma to be a contender for the most promising commercial loudspeaker I would like to pass a few critical co...
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Ulf, are you still around?
I would be interested in an update on this project.. are you listening to this setup a year later?
I have a pair of these same drivers (TAD tm-1201) sitting new in boxes and trying to determine what horn profile, tractr...
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I have no idea what he is and what he is looking for. He declares himself as “just an average guy in an average basement shop building hi-fi audio horn speakers from wood”. I do not even know in what country his leaves, not that it is important...
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With exception to the fact that I have no bass my new room did not give me a lot that I feel might be qualified as strange. I still do not know this room as good as I knew my old room but I will be there, it is a derivative of time. It is not tha...
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...because I have never built a big horn such as this. My knowledge is theoretical only. But the way that I understand it is as follows...
[quote user="xandcg"]1 - in a room around 15m x 9m x 5m (675m³) with the horn ...
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[quote user="jessie.dazzle"] 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), and to move the horns up on to or down off of...
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Sorry for the delayed reply.
Oh yes. 50Hz is possible ; )
Fs of the driver is measured at 32HZ matched for both channels.
As for a smaller driver, the smaller throat, keeping the "same" length for practical reasons wouldn't load it suffi...
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[quote user="haralanov"] First of all, I want to note that when somebody lives on the principle of denying everything, he risks to live in his own encapsulated world, build according to his own principles in order to feel comfortable there. [/q...
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[quote
user="koh123"]Upon reflection I forgot that we ultimately listen to
the sound produced and not the beautiful computer simulated SPL profile.
So I went back to old school thinking and re-generated the mid-bass tractrix
horn with the mouth ...
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First off, I forgot to mention an interesting observation: Before running the sweeps (previous post), since the drivers in the upper-bass horns are new, I decided to verify/optimize rear chamber volume (they are easily adjustable)... I wasn't expecti...
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This is very interesting subject.
I expect that tghe new Midbass horns will have somewhere 108dB sensitively anechoicly. The driver is 99dB and the hyperbolic curve has much more EQ then Tractrix and that is more important the EQ that work mu...
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Hi Romy,
FYI: The previous photo of some unknown persons "pile o' horns" appears to be:
Upper midrange: 1" TAD TD-2002 mounted to 650Hz Edgarhorn
Supertweeter: Fostex T90A or T925A.
Lower midrange: ...
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"Dominik, I ma not pleased with your “suck in by Romy vision of sound reproduction” but this is another subject."
I didnt wrote this to make You pleased, this is true. thats all...I would not
advise to build anything as yo...
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Actually it is very interesting question and I almost feel you pain for decision you will be making. I do not think that anyone would be able to express any arbitral opinion about the subject, as least an opinion that worth to follow. You see, buildi...
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Fostex T 500A MK 2 Horn Super TweeterArticle By Bill Gaw at www.enjoythemusic.com
As most of you know by now, I'm a horny type of guy. While my wife may dispute this, my audio system (actually my second partner) would have to agree as all seven spea...
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Coops, I less care about the attacks on me, I know that I am a pH-indicator of Moronity among audio freaks. So, if some specific idiots out there are not happy about me then… it is good for me. The higher we climb in mountains the stronger wind and l...
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Maybe, some people would be interested in what I am doing with my system. I have been continuously listening and sparsely making changes and letting them sink in. For now, I feel more settled and think the biggest obstacle for me in reaching the ...
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[quote user="unicon"]JoacoBut Can you mention the name of the product too ?The manufacturer Site is in Spanish and I could not find out which one is it.Another question is do you reckon that they will ship single unit outside usa too ?[/quote]
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[quote user="ulf"] Well, it was not really a surprise to us that the horn without the phase plug was dissapointing. Without the plug we had a horn that was a bit too short, had too large front cavity and less compression than we desired. [/quote]
It...
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I have been working on curves for tractrix horns based on data generated by HornCalc software. I configured the software to give values corresponding to radial sections for every 10mm of axial length of a horn nearly 1 meter long. When I plot the cur...
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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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Jean-Michel posted a reply in response to my commentary:
http://www.diyaudio.com/forums/multi-way/140190-jean-michel-lecleach-horns-109.html
[quote user="Jean-Michel Le Cléac'h"]Hello,
Romy is totally wrong on that.
( a par...
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This article was written by Johan Dreyer in 2006 posted at AA and the reposted recently at a Johan's local South African forum:
http://vinylsa.co.za/forum/viewtopic.php?t=1016
I desided to give to the Johan’ thoughts some exposure at the horn-citri...
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thanks I have a few questions to ask if you do not mind:
1) Did you experiment with surface of the horns and a negative contribution of smooth surface to Sound?Smooth surface are fine don't waste my time on a trival matters.
...
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I am going to show two different simulations for a 105Hz
tractrix horn with the same 8”driver (B&C 8PE21). The parameter values for these two
simulations are quite different. However
the simulations predict the same great flat fre...
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