|
|
| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
|
|
 |
|
|
|
|
|
What your little G.I.P Laboratry does is absolutely irrelevant. They feed already pre-buttered customers and their moves are not important. Shindo and Cogent do the electromagnets for years but they doe little events with no influence. In high-audio ...
|
|
[quote user="Romy the Cat"]Below are the images illustrating how it will work at the first test-stage.
[/quote]Hey, I kind if did it….
The first draft of the experiment with Vitavox S2 driver is on. The idea to use a combination of permanent magn...
|
|
MochaMike, yes you are correct it would not be the “softness” but rather”liquidity”. Still what you are taking is applicable for the paper cone 4 to 15" drivers not compression drivers. Who knows how the compression drivers will react.
To the rest ...
|
|
[quote user="Romy the Cat"] Haralanov, I do not
mock you, I juts report the facts of my past experiences. [/quote]No, you do
not mock me. My experience is exactly the same.[quote user="Romy the Cat"] In fact I personally fee...
|
|
What I think I would need is microscopic pneumatic valve that I would be able to stick into my back chamber and that would have a little-bolt that would allow adjusting the diameter of the leaking “port”... Sure, it would be fun to have the valve to ...
|
|
[quote user="cv"] I couldn't unscrew the top threaded piece myself. Perhaps I was turning it the wrong way?! Any guidance you could give on dismantling the driver would be appreciated.[/quote]Chris,
To take the outer ring is very simple. Uncre...
|
|
...say like a Supravox at around 99dB: http://www.supravox.fr/mesures/mestg11.htm for some measurements and http://www.supravox.fr/haut_parleurs/tg1.htm for data. They rate it for 98dB but when I heard it, it measured a bit more at over 11k...
|
|
[quote user="Stitch"] A interesting company is Acapella from Germany. When you have the chance for a demo, try to visit.[/quote] The Acapella from Germany is an interesting company but they have MF driver challenge that they did not resolve for year ...
|
|
[quote user="be"]I just spoke with a guy who have made both permanent magnets and electro magnets for loudspeakers.He said that the reason that electro magnetic speakers have a smoother and more grain free sound, is due to the temperature rise in...
|
|
audiofilofine, I do not like when they just remove the magnet and to replace it with electromagnet coil. I do feel that in this configuration the coil is not vented well and either the driver has too much thermal stress or it will run only at very lo...
|
|
[quote user="serenechaos"]A great match for Asian culture/music? Makoto Tanaka (Builder of the Nessie cabinet) was at the controls, playing bamboo flutes, bells & such. [/quote]
And I am not kidding. Each time someone invite me and try to ...
|
|
I am not too worried about the 6C33C bass, since I have other alternative. Even if lower loading will improve it, the problem is to get more power out of the 6C33C to a 40W (PSE perhaps) level to be able to drive the 12in or 15in woofer, even then th...
|
|
I had to dismantle a friends chuffing PM6A drivers the other day (only to find that the foam spider had disintegrated after 5 years, nice work Lowther) What was interesting, possibly, was the coating that Lowther seem to be applying to the voice coil...
|
|
CV,All that you point to is quite correct. My comments were based strictly upon which coil voltage would be a superior sounding electromagnet. The only benefit I can see to a higher voltage is the faster rise time in the voice coil of the induced EM...
|
|
My first impressions a about the “differences” of field-coiled derived form the time when I ran the Telefunkens war time drivers but at that time I had no reference how the same driver would act with permanent magnet. Also, the Telefunkens are the re...
|
|
[quote user="coops"]Are you decrying the use of field coils per se? A friend has been experimenting with them in a specific utilisation and has had very promising results.[/quote] Where did you see in my post above express any condemnation or support...
|
|
Post #45:
M
|
by
be
on
2010-01-01
|
|
|
"the chamber where the magnet is (would it be perm magnet of electromagnet) is absolutely decoupled from any paths where sound flows"The situation is the same as the backside of a woofer looking into a closed enclosure, and this relationshi...
|
|
I was pointed out to Steve Guttenberg’s video “Meet Joe, and
his amazing DIY horn speakers” at https://www.youtube.com/watch?v=EFoCVw2AJRc.
I would like to provide some commentary regarding what I
observed in there. Steve Guttenberg is an in...
|
|
I would like to expense a bit on my post above. If we presume that a warmed up, hot magnet (electromagnet) radiate a magnetic field of different type and those “hot filed” have some kind of positive effect to sound then there is a possibility of mode...
|
|
[quote user="Romy the Cat"]I have a few comments and questions. First about the posting. I guess you are from Italy and your use some kind of text editors that user a lot styles that are not renders properly a browser with western meetings. I just wo...
|
|
Somebody at AA asked about the difference between electromagnets and perm magnet. Thankfully the AA idiots who pick the pieces of brain at my site and already learned that the idiotic blabbering about “the electromagnets have more flux” is comple...
|
|
Thanks, Eduardo, very interesting. The YL 75000 has no phase plug and 70Hz with 1” trout. It look to me like a conventional diver. Which beds a question: if to reduce compression with our classic drivers, loose plug off and reduce power then can we ...
|
|
[quote user="Romy the Cat"]So, you feel that high voltage filedcoil do excite the electromagnets driver somehow?[/quote]I will not call this exitation, let say it dynamic stability.[quote user="Romy the Cat"]What voltage you feel is appropriate?[/quo...
|
|
[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...
|
|
[quote user="Romy the Cat"]
Haralanov,I spoke with a guy who consulted me during my Electo-Vitavox project. He helped me with selection of core material, deliberated the core and calculated the right coil to keep the core mass optimally magnetized....
|
|
[quote user="Romy the Cat"]
haralanov wrote:And the very same is with electromagnets. With those so widely used 12V power supplies (Fertin, Feastrex for instance) the sound is always softer than it should be in reality with severally restricted dy...
|
|
[quote user="haralanov"]And the very same is with electromagnets. With those so widely used 12V power supplies (Fertin, Feastrex for instance) the sound is always softer than it should be in reality with severally restricted dynamics and transien...
|
|
[quote user="Dominic"] i thought of it as soft and chalked it up to not being as strong a motor as was needed and begrudgingly accepted that perhaps 'field coil' did not mean 'powerful motor'. I'm starting to think otherwise…[/quote]
Yes, it is exac...
|
|
[quote user="be"] By distortion in the throat I mean distortion caused by the nonlinearitiy of air that manifest itself by high pressures.[/quote]
Erik, I do not see why higher pressure atomically implies nonlinearity. Gas pushers its walls very lin...
|
|
[quote user="cv"] Or build your own outer magnetic circuit as you are saying, retaining the S2 diaphragm, phase plug, pole pieces and throat.... [/quote]
If you read the thread form beginning then you will see that it was my original ultimate intent...
|
|
|
|
|
All context of this site except the Forum's posts
Copyright © Roman Bessnow 2004-2024
All messages within the Site’s Forum Copyright © by
authors of the posts
|
|
Last 24-hours posts: |
0 |
|
 |
|
|
Total human visitors: |
42,843,260 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Lehár, Franz (30 Apri»
|
|
Russolo, Luigi (30 April 1»
|
|
Johnson, Hall (Francis) (2»
|
|
Raphael, Günter (30 A»
|
|
Heiden, Bernhard (24 Augus»
|
|
Zwilich, Ellen Taaffe (30 »
|
|
Avalon, Robert (25 Septemb»
|
|
Williams, Adrian (30 April»
|
|
Czaplowski, Philip (30 Apr»
|
|
Bonnín de Góngor»
|
|
Everhartz, Jury (30 April »
|
|
Mongoven, Casey (30 April »
|
|
|
|
|
|
|