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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="Romy the Cat"]
It look like the project progress well. I have a little concern
about heat the will be building up in your PS enclosure. I do not know what
kind ventilation hole you have in there but be advised that it will be quite
...
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First of all, the people who read this thread need to understand that I use the metaphor “idiots owners” purely in pedagogical sense. There is nothing idiotic to run neither single driver speakers, to have very bad speakers or not to have speaker...
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[quote user="i_should_coco"]I guess these would work nicely from 300Hz to ??? Can the S2 really go that low? I've heard differeing opinions....[/quote]
Pete,
How low the S2 really go? It is a little bit complicated. First of all there is an objecti...
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Hi N-set,
Interesting query on the small Stax. I don't want to go down the path of equipment reviewer but do want to answer your question and contribute where I can.
I have not tried the portable Stax model. Out of the gate, I could not reconc...
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[quote user="haralanov"] Some time ago I intentionally made two different boxes for my ScanSpeak drivers to see what will happen, because I do not believe in theories and trust only to my ears. The boxes had exactly the same internal volume and front...
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[quote user="Lbjefferies7"] Very good. Raal 70-20XR...interesting. [/quote]
Oh, yes, the 70-20XR is very interesting. I did not have this driver but Alex allowed me to experimented with some elements of it’s design in context on my “Wa...
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I think I have too much time on my hands or use my time in highly stupid fashion but I decided to do today the experiment about witch I was thinking for a while. The experiment was “methodology clean” and lead me to quite interesting discoveries. Sin...
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[quote user="Romy the Cat"] A few years back I wrote somewhere that I “developed” a semi-mathematical formula according to which an acoustic system’s result might be absolutely objectively weighed up. I did not go very far with advisement of this eq...
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Let start from the largest drivers and go down. There are larger then 18” drivers (23” and 30”) but looking at this magnet structures I do not find them serious. I addition to make the 23” cone stiff enough requires a lot of diaphragm’s mass or to us...
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Part 5: HornsIt was quite bad, bad on all horns…..
The first was the “new horns guy” …
(references to: http://www.goodsoundclub.com/TreeItem.aspx?PostID=484)
This year behaved quite nicely. Seeing me he immediately told that he has not...
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[quote user="haralanov"] Take a look at the video: [/quote]I am not sure why you keep bringing the Vengerov’s video again and again. It is quite banal things and those infomercials of Vengerov educating in front of camera the sentimental girls ho...
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I tried for at least a year to get some Aurum Cantus G3 ribbons to work
in my high efficiency system, and never could. I tried
everything. I finally concluded that ribbon drivers do not work
with HE systems. A $6 motorola piezo horn with som...
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[quote user="koh123"]
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...
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At CES there were Viagra-junkie sized power cords everywhere for $5000. Around our room were $10k and $20k speakers that sounded like a wet jukebox. It was the land of delusion.Value per topology is one way to measure but let's instead start with a p...
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Herman,
What you describe is fine. Over the course of last years I had a number of people who report identical things to what you do. Even if you change volume of back chamber and move resonance frequency then sound will change but it most lik...
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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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ygoh wrote:
1.) What's that formula to calculate the back chamber volume given a throat reactance?
2.) Would it be a bigger back chamber with higher reactance at the throat? or vice versa?
You do not ne...
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Your latest post got me thinking in a sort of incomplete way about how you might locate the injection channel... If you consider tone as a harmonic of the original source, then (depending on the order of harmonic) it may in fact not be co...
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[quote user="audiofilofine"]to reel from 7 volts or 700 volts is equal to the reel. should rather ask why or why 7 or 700 volts. should be asked how you intend to use the horn driver, you should ask graphs of frequency response and power handlin...
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[quote user="vinylithicum"] Here are some of my observations regarding the Wolf von Langa RCA 1428 replica. I long time wondered where mr. von Langa gets his phase correction elements and the diaphragm for his RCA 1428 replica. It's obvious that ...
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Last night I was experimenting with integration of ULF and midbass and was playing relatively loud. The ULF woofers is at second order at 35Hz and the were located outside of my listening room, in the next room with a large wale between then, but...
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Chirag, First off all you have to define what do you want from them. If at this moment you’re looking for something within $700 then very next year, when you finish you medical school you will be searching in very different price range… :-) Now a lit...
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[quote user="jweiss"] It was good to finally meet you at CES at the Cogent Room. I guess that you really found Steve and Rich's drivers pretty interesting (you initially wanted to buy a pair of the midrange drivers, remember?) [/quote]
Hi, Jonathan....
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[quote user="Jorge"]Sometimes it is not so much as adding color, but taking it away. Most cheap cone drivers will exhibit a loose sound, so if you want to get the cellos more clearly, you need to get some meat off the bones or they wil get lost...
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[quote user="Romy the Cat"]Do not worry, you won’t be happy with your new speakers
as well. It is a little dirty secret that no one told you yet: speakers do not
give happiness. [/quote]In my case only speakers can give me happiness, because with e...
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I've been doing a lot of research on how a properly designed horn works
(from initial Western Electric designs to present day efforts) in order
to get a real grasp of what will and will not work. I've read and
saved hundreds of papers and de...
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Jessie, I pulled posts from Macondo Axioms thread and encapsulated them onto a new thread dedicated explicitly to your project. I hope you do not mind.
[quote user="jessie.dazzle"] This would impose a design that is not round but octagonal. It would...
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It look like the project progress well. I have a little concern
about heat the will be building up in your PS enclosure. I do not know what
kind ventilation hole you have in there but be advised that it will be quite
hot. In worst case you mig...
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[quote user="Romy the Cat"] After a few month of living with YO186 I think I know everything about this tube. I do not use the YO186 all time and I think the explanation why I do not use it all time would well describe what YO186 is and how I use...
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[quote user="jessie.dazzle"] After observing a pair of AK151s operating in free air, though only lightly driven, I just don't see how they can possibly generate so much pressure, as the cone barely moves! [/quote]
Why shout they move? One of the ide...
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