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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="noviygera"]p.s from my experience of having a 500 sq. ft. listening room with 7 ft. ceiling and having two 18" woofers in a infinite baffle configuration, it is not enough to pressurize the room. I am talking about low and medium listeni...
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I'm mainly concerned about three things: 1) I know I'm using the larger compression driver outside (below) its designed operating range, and it may not work well there, although just band-passing it in this range, and using it at reduced volume witho...
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Stefano, I do not exactly follow what you tried to say but it is OK. We do need to understand that we do when we are talking about Goto or any other driver manufactures. It is absolutely not know what the hell sound comes in your drivers. I hardly be...
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[quote user="mats"]I have found the T90A to be reasonably in-offensive with JBL 2435 Neo/Be compression drivers. I use them with relatively small caps, currently 0,3uF. The effect is a welcoming of a higher frequency palette that to my ears does not ...
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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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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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According to my London contact the British miniatures Fane Acoustic is gone to dark. The remaining inventory was scraped by Eminence and the Fane is no more.
Over the years Fane made some interning things: guitar cone drivers, compression drivers, r...
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As I learned today the Australian Martin seddon know as the Azurahorn Guy has a web site and he also does horns:
http://www.azurahorn.com/azurahorn_tradesecrets.htmlFrom Martin’s site:Azurahorn is best described as a long term audio project, funded ...
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[quote user="el`Ol"]JBL developed the PT-Waveguides not only because they are easier to produce. They also have less harmonic distortion than biradial horns. Disadvantage: They look far less funky.[/quote]Why JBL developed their PT-Waveguides and how...
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[quote user="MINGSU"] I finally received the GOTO SG38WNS 15" woofer and GOTO SG188S tweeter this week. My next step is to build a dual driver bass cabinet to cover 70Hz down. [/quote] Ming, I know nothing about the Goto woofer. Would you care to sha...
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[quote user="Jorge"]One more thing about the JBL 375, I did play around with them enough, I aligned the diaphragms several times untill they sounded their best and were very listenable, This was some time ago now, I didnt turn my horns then, so I tr...
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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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[quote user="msaudio"] Romy I have not herd so much doulble talk in a long time. Some of the best sounding drivers on the market in the last 60 years, were for sound reinforcement. [/quote]
It is not my view. I wrote about it many times before...
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[quote user="haralanov"]I think you wanted to say reflection surface, not radiation surface, right? Radiation surface is the surface that is directly attached to the vibration creating element (the voice coil). So the radiation surface of the horns u...
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When many of your will experiment with building and listening your own horns and spend countless amount of time by sketching a configuration of your new horn assembly you then might come to an observation that Macondo Upperbass topology is very s...
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Crossing the woofer so high is not really a fair comparison. The compression drivers needed to be in a bigger horn, and possibly be replaced with a driver that does 100Hz for certain. ...
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[quote user="Romy the Cat"] I do not use compression driver
for bass channel. I would like to have my system esthetically balanced, to get let
say 120Hz from a compression driver would take too long horn and it would be no
way time-aligned it. So,...
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Hi Paul. Looks like blendet paste? Thats not an engineering approach...I know from small closed woofers enclosures this construction kills a lot of K2. But it doesn't treat the k3 or higher. So you gotta be careful to keep the balance. But as horns s...
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Hi all
The WE 555 is IMHO an interesting driver, made for a very spesific use,
which is driving a "full-range" horn in the theatre.
As we all know, the wide range system with Jensen 18"woofers and Bostwick tweeter came later, at first the 555 an...
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[quote user="slowmotion"]Unfortunately that will never happen...... [/quote]Yes, Jan. A agree that this would never happen, and particularly looking at the direction where the industry heading. It “might” take place among the direct radiators – still...
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eyop fellas,Romy wrote: "Here we go! Not we are taking!!! I would not need the S2 tweeter and what it dose now in 400Hz horn is perfectly enough. I would go only for the midbass S2. Something with 6” cellulose diaphragm, low to medium compressi...
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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 the mechanical parts...
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Well, a lot of horns are put into box enclosures of course. This is really a complicated subject. The baffle must be dealt with in a manner similarly for all loudspeakers so designed of course. More interestingly is the potential fo...
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[quote user="JLH"]Foolishness is too soft a word to describe the unspeakable garbage the Magico Ultimate is. They have mis-matched impedance drivers, improperly sized horns for the drivers, and made everything from metal. Then they go on an attempt t...
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Angelo ,Romy is right .Forget about him and his advices. Go to the mountains and find your inner truth....:0)For years he's drooling that S2 although not perfect is the most interesting compression driver and now when there is the chance that this dr...
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Again, I do not agree with all notion of Rubber sound that Haralanov seeded. I can not speak what was in the situation that “be” described and 400Hz crossover. I do have the 8” version of 25W driver (I think it is 21W) and my feeling that it sou...
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After the painstaking setting up of the new Macondo, measuring all distance, paralleling the horns and time-aligning everything, after the setting up a correct level of the new channel’s attenuation (it turned out -2dB was necessary) I spent some tim...
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A lot of people ask me about those drivers and I’ll try to compile my vision about them. I did try most of the possible tweeters: dome tweeters with cloth cones, varies type of hard metal domes, compression drivers with aluminum, titanium, phenolic a...
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I have order 4cu feet sealed enclosure for two 15 drivers. It
is relatively small box but I need to hit minus 6-8 dB at 50Hz. The collection
of the drivers I have would be following: Vitavox AK51 and 15/40, Altec 416B
and 515B. I like Vitavox tone...
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