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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Guys, does anyone has service documentation or pans with dimension for the bass section (cabinet) of Vitavox CN191?http://website.lineone.net/~empson/Sys191.html...
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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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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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From the Vitavox site: http://www.vitavoxhifi.co.uk/products.php?page=pressure_units"With the coil wound directly onto the dome there is direct drive - no intervening adhesive joint - and damping of eddy currents. The surround is formed from polyeste...
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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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[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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[quote user="coops"]If you are correct there should me a large gap in the market for any company that really cares about sound. Returning to the topic of the thread, have you noticed wide discrepancies in the 'sound' of S2 drivers even between driver...
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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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…. I would suggest trying to drive this driver with a single stage solution with no capacitance - you might find it very very very very very very educational.
http://www.romythecat.com/Forums/ShowPost.aspx?postID=4241
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http://www.historyofpa.co.uk/pages/speakers.htm
here is also some PDF files
http://membres.lycos.fr/stephane3000/_private/frameset_vitavox.htm
The Cat...
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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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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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It is this section, labelled "Pressure drivers", that caught my attention...http://www.vitavox-sound.com/PressureDrivers/tabid/134/Default.aspx"Still to be done" is not exactly encouraging, but does hint at promise. But if the serious audio part of t...
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I would not call them “bad”. They use very different magnets and meant to be used with higher power (with all negative consequences). You see the ceramic magnets are more or less OK for LF application but when a driver goes up and hits upper midrange...
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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...
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[quote user="Romy the Cat"] The S2 has own very idiosyncratic upper range with own helpful resonances injected into sound. I feel that that original metal suspension diaphragm does it bolder and more aggressively then the plastic suspension dia...
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[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...
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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...
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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...
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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...
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Lately the Vitavox electromagnet project looks like moved to a fruitful direction. Well, I do not know if the direction would be a real fertile but it will be going somewhere instead of talking… that is always fruitful. I have quite good support form...
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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...
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[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...
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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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[quote user="Romy the Cat"]If you are still in MF frustrations then I have something that you might find interesting. Recently I pick up in UK a pair of Vitavox S3 drivers. I figure that if you wish I might let you to play with before they die in my...
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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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Here are never opened before 50 years old S2 drivers dissected and ready to be "cleaned".
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I recently made some highly attractive changes with the way in which I use S2. Now, since the S2’ top got cleaned up the universal misery of universe bothers me tremendously. :-)
Really, the S2 runs in my 400Hz horn up to 12.5kHz and the S2’s 12.5kH...
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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...
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