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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Romy, You make all very good points. I probably shouldn't call the front of the driver a phasing plug, because actually the long wavelengths really don't care much about the shape of the exit, they will just pass right through...
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The big RCA field coil is the best thing about the Cogent system. It has great "promise", based on what I heard. Although their methods of "developing" this driver seemed confused to me, they do have truly encyclopedic knowledge...
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[quote user="Romy the Cat"]The S2 has own channel and here is nothing your can do about it. [/quote]Yes, of course. The answer may be different for the S3, inasmuch as one might be able to start the chosen profile at the diaphragm...[quote user="Romy...
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[quote user="oxric"] So, yes, in an ideal world, I would have seriously considered doing something different….[/quote] I guess your definition of “doing something different” would imply reading of 534 pages of BS from people who have no idea about ...
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[quote user="anthony"] Murataltuev wrote:So, the question is still opened: how to get 300-400hz.Perhaps give the JBL 2169H a try. It is supposedly very good from 300Hz to 2.2kHz, but I have never tried it. Use it in a sub 200Hz tractrix horn with a...
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Kerry, from what you have said so far, I am not surprised that you have gone whole-hog digital. I see that yours is an HT system. The first thing anyone here would say is, physically time-align your HF, although I suppose you "could" do that with DEQ...
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[quote user="Jorge"]I tend to like drivers with plastic suspension. Radian makes retrofit diaphragms for JBL with plastic suspension, maybe they will help you achieve the tone you are looking for.
Extensions are easy to machine out of aluminum, eve...
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I have been using my Ekornes Manhattan chair and generally I am pleased with it. It is a bit not deep enough for the taste of my ass but with footstool it works fine. There is however an aspect in all of it that I do not likeand that I did not think ...
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Well, I do have 3 channels of DSEP. Dedicated Single Ended Pentode: one channel (bass/mid 30-500 Hz) with a 307A DH pentode feeding two wonderful Fane neodymium Colossus 12" - one from FS to 150 Hz and the second from FS to 500 Hz. OPT with a lot of ...
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This weekend I visited a friend of my in NY who played to me his playback. I need to say that I did not care too much about his playback and visited him as I like him not his audio adventure but the Sound of his playback did surprised me. It was not ...
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Dominik, in terms of technology advancement, it seems their new driver is better than their other models. But despite this, I’m not sure their transducer engineer knows how to make the drivers to be valuable in terms of sound/tone. I’m saying that n...
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I am currently planning high-WAF speakers for my sister which have to stand in the corners on the floor. Asking for small corner horns I was told the EV Baronet could be a solution. Simulating it with roughly estimated dimensions I found that the FR ...
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CV,All that you point to is quite correct. My comments were based strictly upon which coil voltage would be a superior sounding electromagnet. The only benefit I can see to a higher voltage is the faster rise time in the voice coil of the induced EM...
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[quote user="Romy the Cat"]
I think a cool direction to go might be to use a naked fibers or soaked cloth, I never tried but I would if I were in driver making business, Rgs, Romy the caT[/quote]Some years ago, when I discovered a Coles tweeter w...
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Dear Malinowski,The basic idea for phase plugs is that the sound from all points of the diaphragm should arrive to the throat at the same time. For the midbass horn we only used a simple one slit plug. If you feel up to it you could make a more...
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Josh, I am not sure what you want to say. If you looking to name the reason why you like the sound of Gotos then you are guessing as much as anybody else. I can tell you even more. I very confident that the Goto folks themselves are guessing. I do no...
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[quote user="twogoodears"] I learned nonetheless to use for my (limited) task (fine tuning my speakers and audio system in my music room) the great IVIE IE-30 R.T.A. and IVIE IE-20 white/pink noise generator [/quote]
You do not need white/pink...
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[quote user="Romy the Cat"]So, if the Ultimate MF Compression Driver is used from 1000-1500Hz then why shall it be able to play 500Hz? The answer is: he harmonic reserve – the driver that will be suited for 500Hz will have larger cone and softer sust...
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Being a Russian by birth and inheriting all typical for Russian masochism I sometime visit the High Efficiency Speakers Asylum, laughing me sick tail off. Between the fresks in there patting each other and the mercantile cretins who pose themselv...
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One advantage of the use of a phase plug in a midbass horn is that it will beam less at higher frequenzies than a horn without phase plug. If the phase plug is designed for the specific horn and driver it will help "steer" the HF.
Me and a friend ...
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[quote user="Paul S"]Andy, I will say right away that I am not at all set up to "exploit" online music, but this comes across to me as "clean" and "noise free", with some nice spacial effects, basically devoid of harmonics, and not much in...
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I do not look for beryllium diaphragms, I just was wondering if someone has succeeded to manufacture them in “basement conditions”. As I understand it shall be VERY difficult.
Well, your driver might be interesting. If I was able to accommodat...
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He might be a fraud or it might be that he did found some stock of “different” Vitavox or Mike’s diaphragm. I do not think that there were any standards and the make different production runs, and some of them might be better or worse than other....
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After thinking about this for a while, I have had a thought that should be relatively easy for anyone motivated to explore and I would be interested to see what others on this forum observe from such experiments.Fundamentally I think the injection ch...
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I agree the "period" closing needs more words, Roman.The P.A. horns/drivers were mounted in stadiums, convention centers, maxonic halls, cinemas, theaters, everywhere was needed a broad music or speech dispersion, trouble free operation and high S.P....
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SGSG-37FRP (designed for mid-high ranges in a smaller system). 56,000 yen Driver frequency band: 400Hz - 10kHz, " optimal crossover is 500Hz or more" 110dB, 18,500 gauss
SG-370
(designed for...
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it would be nice if somebody who knows a thing or two about mathlab and pspice would develop a accurate model. in pspice one could include the crossover in the simulations....when i tried your recommendation with s2 and 3uF cap my "basshorn" ref...
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Ok, I found my RTA cable and did some very basic measurements of what Macondo does in the room. The results were in the direction that I anticipated but worth in amplitude. My right bass channel that that sited right next to the equipment bay has no ...
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Vasyachkin,
I have different view about “modifying products” as any product is always implying something very generic but I have my own needs. Probably not “modifying” but adopting would be better but it is not the subject in here.
If you read my s...
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well, i believe that the popularity of the better fostex tweeters comes from their typical, off-shelf sound which is soft and easy on ear in comparison with super-resolunt Ti or Be diaphragm equipped competition. they very much suit any sharpness com...
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