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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="rdrysdale"]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 thr...
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No love lost for any particular driver type here. They are all all-but-hopeless, as far as I'm concerned, just for different reasons.Jesse, what I wonder is how the small daiphragm of the compression driver, with its very small movements, can b...
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AlloWell this could be very interesting.... the Melq driver (at lower voltage) direct coupled to a 6C33 cathode follower run at low voltage, high current. Vincent looks like he's running about 80V 500mA, though in this case you'd need to use a r...
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good point well made. Funny, i have tried to give up coffee many times. sometimes sucsessful even for 6 months at a time. But somehow, life with coffee is just better.Anyhow, what are the 2" comp drivers that ARE any good and are available comerciall...
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Romy,I took your advice and now have a single 2440 driver. At least i THINK its a 2440. On opening it i find that it has a phenolic diaphragm! Have I been sold something else? I was not aware that there were ever any phenolics for the 2440 family. Wa...
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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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Decoud, in order to say anything useful I would like to know to the following: 1) Where the tweeter will be installed? 2) What the size of the room? 3) What are you planning to install the speaker in your room? 4) What LF solution do you consider...
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Use a ladder tye end of string put other end threw the horn you use for 1000Hz take off driver, measure front of driver to poll piece, that is were the diaphragm mounts to. add that to your measurement and that is were you put the tape. Then with the...
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[quote user="nl"] However, these sorts of basshorns with twin 15" drivers and a very large mouth (larger than the cones of the drivers) have a long history. The Altec 210 cabinet, as used in the Altec A2 systems with two 515-type woofers, is a prime ...
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What the sonic impact will be? I clearly have no idea. I was slightly desponded and warned that my excremental S2 with electromagnet did not have the “sonic impact” that I find useful.Regardong the Quartopuss... Chris, you're confused because t...
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... or wondering if it has any new insight into horn design.I did not read the book but I find funny that person who presumably do not “believe” in horn write a review about the presumably horn related book. It would be similar to ask a blind person ...
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[quote user="Romy the Cat"] The 6moon has posted an article about the Living Voice:
http://www.6moons.com/industryfeatures/livingvoice2/olympian.html
http://www.6moons.com/industryfeatures/livingvoice2/olympian_2.html
...
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In the thread “Exceptional loudspeakers drivers” Paul S. wrote:"LOTs of time pretty much wasted lately, looking at "HE" direct-radiator drivers that are actually only HE at their uppermost frequencies, with diving responses and large-to-hu...
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[quote user="jessie.dazzle"] The AK150 and 152 are not new creations dreamed up by Mike; they were made back in the day by Vitavox but nobody ever talks about them and I have never seen either. See the Unofficial Vitavox web site; AK150 = Catalog...
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[quote user="Romy the Cat"]With lower then rate frequency Fs is also
is very simple. If you refuse to make own experiment and confirm the unloading
the bass from horn make difference then try to look at the subjects purely intellectually:
why you ...
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[quote user="Romy the Cat"]I very much do not want to sound like I am expressing sarcasm. [/quote] Romy, I don’t treat your comments like expressed sarcasm and I never did it. In my view, your site is the only place in Internet, where fruitful discus...
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[quote user="Bud"]First thing I would try is a single dot of Elmer's White Glue applied in the exact center of the dome, on the outside. The dot would be the size of a round wooden toothpick, cut off at the beginning of the taper. Dipped in the glue,...
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[quote user="cv"]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 mism...
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I never heard it or about it but here is data:
http://www.meyersound.com/pdf/products/studio_series/x-10_ds.pdf
http://www.meyersound.com/news/press/sos_x10_800.htm
It looks like it has CB horn and aluminum cone in pl...
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[quote user="Romy the Cat"]
(1)Interesting that you omitted in your response the “insultingly-extended HF”. I feel it one of the biggest problems as luck of “transients from distance” people foolishly substrates with a presents of bogusly-supplement...
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Petar, you know my set-up well, and your remarks are correct within the context of that knowledge. However, despite the obvious technical problems, Etta's voice - per se - is actually - remarkably - accurate, with plenty of body and soul. While I s...
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[quote user="cv"]Romy,Are you currently implementing "nominal" 3200Hz x/o on the mid range channel S2 using a cap at the driver? I know this works nicely to ameliorate the "secondary" resonance of the plastic edged diaphragm.Reason I ask is because t...
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John, I am bit puzzled with your response. I do not know what would be a proper material for cone/dome of diaphragm. The source where “tone” is born in compression drivers is absolute mystery to me and I in my holly naiveté believe that no one else k...
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So, I did exactly how I described in the previous post and I returned back to the plastic suspension diaphragm sitting in the “new” drivers. I lost ~3dB sensitively and was forced to go back to 3uf crossover, exactly how I described in the beginning ...
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The $3.6K per pair, if they are good divers - the 2440 level, is a tolerable price for custom-made drivers. I presume that he does not include and PS into the price. My major question would not be about the drivers – the filed-coils are very simple d...
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Romy,
I am off to Taiwan tomorrow but will ask the question by email. I have not heard that kind of custom diaphragm ever available from GOTO on SG146LD4 driver. I know the 15" woofer can be request with different stiffness of the cone.&...
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I love not only the beautiful results you are getting, Jessie, but also appreciate that the methods you are adopting allow you to continue to refine your horns on the fly. Particularly nice, to my way of thinking, is that you can tune your horn...
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Of course I am not really talking about Rullit but only holding up his implimentations against his stated aims. This is certainly no special case, since most smart people learn the talk and the "look" long before they learn practicum, if they ever d...
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The played today a little with Vitavox S2 driver with electromagnet and made some measurements. Measuring the relative magnetic force (I use Hirst GM04) I found out that increase current up to 3A linearly increases the magnetic force in the gap...
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Hi Dominic,
I have some Rola's. Although intended (in organs etc) for quite widerange use I'm not sure that for listening to music they should be allowed to go too high. The other thing I found was that what lower frequencies they produced were more...
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