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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="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...
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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...
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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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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...
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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 ...
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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...
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I put a couple days ago a silk dome tweeter in the game. I look in my storages to see what I had there among the traditional silk domes. I ended up pulling out my North Creek Music D25 driver.
http://www.goodsoundclub.com/pdf/NorthD25.pdf
I ...
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The Heil AMT drivers are well known in audio. There is a cult of people who follow them and they swear that Heil drivers are like nothing else. The Heil drivers were made by ESS, by Scandinavian, by German’s pro audio and by Russians. The do use defe...
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hy romyas i dont find a second aura 1808, i was looking as a alternative to buy a aura nrt18-8. aura is producing them in china, madisound price is 939us dollars. wholesale price from hongkong ( minimum order is 11 pcs ) is us$288,00 !!! i know there...
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hi alli found a company in china wich can produce the compression drivers on my request. has anyone the exact specifications and drawings of the vitavox s2 driver ? that's of course essencial to get them made. i will also send a email to t...
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It is complicated. Any tweeter is different and the RAAL’s “Water Drop” tweeter is more different then others. Almond any other tweeters that I heard this tweeter has something absolutely unique- it has no annoying upper MF nose. When I asked Alex to...
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[quote user="guy sergeant"]Not yet. I'll give him a call & put details of the reply here.[/quote]Guy, when you will be taking with Mike then here are some taking points for you if you wish:
1) What type of magnet Mike is planning to use in his new...
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I really would like the Vitavox users who use the bottom region of S2 driver to pay very serious attention to my post above. The redaction of compression in this driver and dropping the resonance frequencies does impacts the lower knee sound of the d...
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I did a lot of those experiments a few years back, stuffing the back chamber of S2 driver with all imaginable things. During that time I did not use a dedicated lower MF channels and was concerned only about the S2 top end. I did not detect any diffe...
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From Email that I got today:
“….. I see that you are considering trying the metal diaphragm again in your S2s. I am using the metal diaphram for the moment (it is all that i have), but have the terrible ringing problem, especially on female vocals. ...
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I kind of fed up to receive those emails (I ordinary do not reply them) with questions and therefore I would a would make one atypical public statement and it will be it. I say “atypical” as I truly do not care about your purchasing habits, still sin...
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[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 ...
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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...
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I picked recently a pair of S3 drivers. Not that I need them but it was good deal – perhaps someone in UK have demolished an old movie theater and a large school of S3 drivers with original diaphragms hit the maket recently. Also, I always meant to t...
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I am constructing a set of 400 Hz resin-bonded sand horns and have been thinking about the best way of coupling the S2 to them. I can't find anything off the shelf that is 2.620 x 16 tpi, and none of the people with lathes I know have imperial kit to...
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For all S2 fans... please be aware that seller "milesvintage2007" was claiming to have found a load of diaphragms in an old cinema (yeah, lots of those running Vitavox in Hong Kong, I'm sure...*)Even forged the labels on the tins... He has since remo...
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[quote user="decoud"] The tweeter I thought could go below the MF. [/quote] Not going to work properly. The EV T350 is 120 by 60 degree tweeter met to work in vertical configuration. If I were you I would lower you MF until it edge along with upperba...
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I have a couple of queries relating to the transition from the mouth of the S2 driver to a horn generally, and to a 400Hz or 250Hz horn specifically. The profile calculator that I use for tractrix horn (horncalc) does not take into account the de...
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Peter Empson from United Kingdom, the guy who use to run Unofficial Vitavox site and Forum has open a High-Fi shop in Aylesbury with a sentimental name “Deco Audio”. He sells the new production of Vitavox parts: The S2 drivers, the 15” woofer and...
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I have a guy visited me today who have high-voltage version of RCA 1428. I asked him to provide is feedback what in his view difference sonic between his 1428 and my S2 driver. Of course it might be large difference in the way how we use our drivers....
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So in an effort to learn something about the way the 288 and S2 sound the way they do, what do you suppose the mechanical differences in the construction of each driver that causes the differences in sound as they look so similar physically?
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I believe you use the laser to find out at what frequencies there are resonances and where they are at so youcan make the phase plug accordingly but like I said I know about as much as those lasers as I saw in the Tad brochure. A machinist told me on...
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[quote user="Paul S"]Best case, a system will have both great tone and plenty of "headroom" to play the Music you want to hear the way you want to hear it. We've discussed before that AN systems are pretty responsive, with great tone, but they do not...
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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. ...
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Copyright © Roman Bessnow 2004-2024
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