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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="eduardo"]
YL 75000 has heavy phase plug indeed , rca style (see sketch) while 1250 ( I never had one) gets a fixed metal dome equivalent to spherical piece on 75000 and rca plugs without conical shape pointing the exit of throat. Ir...
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[quote user="Rewind"]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...
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Perhaps there are ways to horn load Lowthers that do not screw up the sound, but I don't know of any, and there are other reasons, as well, for not asking LF from Lowthers.For me the best thing about the high-pass-limited Lowther DX4 in OB is th...
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Mind boggling iteration! I.e. & eliminating common denominators, "If the sound is wrong... it is wrong."Agreed. IMO they are right -- ain't no two ways about it.[quote]The Cybernetic Audio System, on the other hand, uses a closed-loop feedba...
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Hi Romy, Hi Jeffrey Steve and I have been working on the bass compression driver for quite some time now, about 3 weeks ago we made some design changes that really paid off, as of now I'm convinced that a compression driver is...
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John, I see where you go with it. I afraid that I will not be making my drivers – I have no idea how to make them in order them to sound the way I need. I have no problem to design and to make 4" exit compression driver or to undertake a project to r...
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Hello all (from Thailand)!I found this very intersting horn society here by accident and would like to show and share my first experience with horn speakers system.It's consist of 4 way system .[IMG]http://i245.photobucket.com/albums/gg69/krairerk/hi...
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I built a prototype of a Avantgarde Trio in newspaper and tape, with the Beyma CP380/M, Community M200, and the Fane S 8M, and I also used a Behringer CX3400 and a 45 tube amp. CX3400 is soon replaced by digital active XO.Paper may have made the midb...
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Don't worry Romy, I know exactly what you mean. I tend to discount the opinion of anyone who raves about a system's ability to play back patricia barber. Speaking of which, if I were in her shoes, bunions and corns aside, I'd be mildly...
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For those seeking some decent compression drivers that don`t cost fortune, I can suggest to try the Eighteen Sound ND1460A compression driver. It has aluminum dome and polyester suspension and 1,4 inch exit throat. Does it sound like S2 ? Probably no...
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[quote
user="xandcg"]I was thinking ESD drivers may have a true advantage
over ALE/GOTO/Others (apparently they actually know how their drivers work) if
that allow to someone design the horn exactly the way he/she want, and later
order the driver...
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[quote user="haralanov"]…. acoustic filter does not rotate electrical phase of the signal. [/quote] I do not think it is correct. The rotation of electrical phase is not the subject of filtration method but subject of slop and Q. Of you write the sam...
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Very interesting… Earl Geddes just posted his thoughts for the Morons at the AA. I do not know is he was inspired by my post of by the completely foolish nose that the AA’s idiots razed around the Cogent’s Steve and Rich experiments but still – it wa...
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Romy wrote:"...jd, I cannot see any of PDF files, probably my current networks kills them...""...The biggest thing that I wonder is how Mick made the Vitavox bass drivers to has 35Hz resonance. You can always use softer suspension and it will drive r...
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[quote user="Johan Dreyer"] I had a SG370 mid apart only yesterday.I should have taken a photograph. I have also seen the inside of the tweeter. They are very similar, so I have no reason to suppose the low mid SG 505 will be much different. I'll try...
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Here is the list of the thing to do with Vitavox S2 in order to use it in 4-ways installations. The S2 must not be used in 2, 3 ways systems. It possible to do with S2 whatever you wish but pretty much any other way to utilize them produces some very...
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I have written in past about my lack of love to the BMS drivers. The crazy, as far as I concerned “annoyingly wiling” angeloitacare brought this subject to this forum while he was galloping across Web, “picking from graves” about his new dB-Design’s ...
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hmm...I didn't realise I had left my browser logged-in to your site (I left my PC on over night, downloading some files).'..the only advantage that class-D amplification has is cost, size, heat generation and power.'In my eyes, that's more than I cou...
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[quote user="haralanov"] Your response is a very good illustration of how you redirect attention away from the actual discussing subject and point it to a completely different direction that has absolutely no relation to that subject. You asked me wh...
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[quote user="skushino"]Here is a link describing Meyer Sound's design philosophy, production and implementation:
http://www.meyersound.com/support/forums/talkshop/drivers.htm
They began production of their own drivers to improve l...
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Pretend
a driver diaphragm, any driver. From front diaphragm "sees" the horn
throat and the mass of air in the horn that diaphragm needs to
"push". This creates let call front spring. If a driver has a front
chamber than let discard it for now. ...
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[quote user="CO"]I have tried a BMS driver a while ago and it was really bad.
About a year ago i heard Berts setup at his house and it did not impress me... It was also with the coaxial BMS.Not much depth or resolution. Did have alot of power though...
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[quote user="cdwitmer"]I'm probably revealing my ignorance by even asking this, but I'm curious to know if a field coil ribbon tweeter could be practical. It occurs to me that if one could be made, it would be a lot safer since it wouldn't be a black...
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Be, this is an interesting thinking and if you are correct and if there is an opening from front chamber into magnet assembly then the volume of the magnet chamber would certainly affect the sound of the driver. The point that I argue is that suc...
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Looking at the variety of exponential, parabolic, conical, tractrix, hyperbolic and whatever ales horn profiles out there I was thinking that we probably incorrectly approach the entire subject of horn profile analyses.
We listen the horns and we fe...
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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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Nine years ago, when I posted the initial post in this
thread the Aries Cerat was a different company with different products.
As I understand in 2014 they changed a lot and today they have a speaker that I
would like to talk a little: Aries Cera...
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Romy,
The upper bass horn has a Ceramic driver 18sound 8M400, the MF horn has an 18sound 2060A Neodymium magnet, tweeter is Beyma Ceramic driver and supertweeter is Fostex Alnico. The Leak amps are PP deep class A, we do have a...
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[quote user="be"]"the cavities behind the coil are not the cavities where pressure passes"
Yes, but the speach coil and diphragm can "see" the air volumes behind the magnetic gap and will be loaded by the resonanses created, and the radiated s...
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