|
|
| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
|
|
 |
|
|
|
|
|
[quote user="guy sergeant"]I had dinner with Mike Harvey from Octave this weekend. Mike acquired the intellectual rights, tooling, drawings and jigs needed to manufacture the S2's. I believe that newly manufactured S2's will be available very soon. M...
|
|
This is the project that I been thinking to undertake for years. I have motioned about in multiple times that Vitavox’s S2 lower region is very lucrative but unfortunately not exactly useable if the driver run all the way up, unless you are wiling to...
|
|
[quote user="jweiss"] When we spoke at CES, you mentioned that your experience with field coil drivers only extended to cone types. So I assume that you have never heard any field coil compression drivers. That would include the WE 555, 594, RCA 1428...
|
|
AlloI had a theory that the bug screen was helping to damp horn modes/refelctions caused by a mismatch between the S2 internal flare and the horn flare rate. I have 340Hz flare JMLC horns, which may be expected to give less of a mismatch than the sma...
|
|
[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...
|
|
Well, I screw-in today the S2 with filed-coil into my horn. I decided to drive it with 2.4A. I used a regulated DC PS and did not employ my prepared for this tusk 4.2 Farad capacitor: the voltage is too high for my cap. The current gave me a ni...
|
|
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...
|
|
Romy, I presume this is with the new production diaphragms? Just wondering if the old ones might restore some of the youthfullness which was diminshed by the field coil?...
|
|
[quote user="cv"]I presume this is with the new production diaphragms? Just wondering if the old ones might restore some of the youthfullness which was diminshed by the field coil?[/quote]Yes, if was the new production diaphragms with plastic suspens...
|
|
[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...
|
|
There are many threads on my site where I covered the subjects of Tweeter for my Macondo and particularly the moment of integration the tweeters with Vitavox S2 compression driver. Since a few months ago I altered my idea to use the EV T-350 tweeter ...
|
|
There is a German company called Expolinear ,wchich started to make ribbon tweeters based on bulgarian research .They make model RT7 pro with neodymium magnet and 100 dB /8 Ohm. I have a pair of their low efficient ribons (~88- 90 dB) with alnico 5 m...
|
|
[quote user="Romy the Cat"]I thought that the folks who are interesting where I am going with my Macondo should know that am still working with Vitavox S2[/quote]OK, I think now I’ve learned whatever I need to learn about this driver. In order to und...
|
|
[quote user="Romy the Cat"]Manville, just for sake of an experiment, I’ve sent one of my “worst” performing S2 drivers to remagnetize it. I do not know if it affect the ‘beneficial resonance” and if it does I will report the results of its performanc...
|
|
Romy,I have seen this a few times with JBL and Altec drivers. This phenomena occurs more often in Alnico magnets than any other type of magnet. When a magnet is recharged, it is blasted with a very strong magnetic field. There is really no way to “ha...
|
|
Romy, I just got a Vitavox S2 into my shop today. I notice that it has a very heavy stainless screen on the front, do you leave the screen on when using the drivers? It looks like it restricts about 50% or more of the throat exit.Rich Drysdale...
|
|
Hm, I do not know men, but it des not work. Over the last few years I have tried the ordinal metal diaphragm 4 or 5 times and not with the Super Melquiades it is the most successful try but I still feel than it is not the sound that I would like to g...
|
|
Whoever followed my bothersome experiments in search for a better diaphragm for Vitavox S2 driver knows that I lately spent quite a lot time trying to make the original metal suspension diaphragm to work. There are a LOT of advantages in those diaphr...
|
|
You must be into antiques or something. Just buy a Raven R1. It will easily outperform both the EV (which is not very good) or the Vitavox (which is good if your hearing doesn't extend over 12Khz) tweeters. Yago...
|
|
A few years ago playing with my favorite Vitavox S2 driver I was asking myself how it might sound if instead of the Alnico magnet the electromagnets would be used. As many other driver of the period the Vitavox did not utilized the only one magnet ty...
|
|
Well, without any theory or gut feeling to guide us, we are flailing around. So let me tell you what my instincts tell me and you can take it or leave it.I think the main advantage of the EM is reducing flux modulation. There was a post recently by o...
|
|
Wow, it took 3 hours to take it apart. As I always told those vintage driver made horrible. The do sound Ok but precession-wise and technology wise they were very pure. They really were the low teach devised made for popping up the sound pressure but...
|
|
Thanks for the picture Romy. 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.
Regarding the active flux modulation idea; I think yo...
|
|
If there is any info in this or another post about why the S2 is so much better than the Altec 288c please direct me. If not what makes the S2 drivers so different than a 288C? (I am talking about 288'cs that the 24 ohm diaphragms have been...
|
|
At Romy's suggestion I've created a new thread for this. I have been thinking about what sort of bass solution to use with the S2. I was hoping to be able to get the S2 low enough (c. 300Hz) to make this a bit easier, but it seem that onl...
|
|
[quote user="Romy the Cat"] For above 550hz you might use the same LL1627A if you wish, for MF the 200-250mA gap will be fine. Yes it would be reasonable to desire less inductance in the transformer, mean less turns but honestly I personally did not ...
|
|
well i never thought i would be opening such a pandora's box with this combination.firstly,the drivers have the plastic surrounds(whew,lucky!i know the diaphragms are potentially harder to source than the drivers)what indicators or criteria would mak...
|
|
I have posted this idea at the Peter’s Vitavox site a few month back but there is no activity at that site. It sucks that there are no advanced S2 users out there. I am planning to try it myself and in a month or so and will report the result. ...
|
|
Here are never opened before 50 years old S2 drivers dissected and ready to be "cleaned".
...
|
|
I just posted yeastoday the post above and have got already a few emails asking about the “new” ways that I am planning to use S2. OK, let me to explain what is going on.
The default Vitavox S2 driver comes with thier default aluminum diaphragm with...
|
|
|
|
|
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: |
1 |
|
 |
|
|
Total human visitors: |
43,285,191 |
|
|
|
|
|
|