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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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It is interesting… complaining about the fact that the “promising to be claver” Cessaro Horn using the TAD drivers (still it is not completely known as they said that that MD driver cost €4000) I asked myself: what else they might use? Really, ...
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If you know how in some optical systems imagery get destroyed when an aperture getting closed to F64 or even smaller, then you understand what happens in compression driver when frequency get higher and spaces smaller. Yes, the proximity of wavelengt...
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I would like to make a few comments about the entire idea of those expensive Japanese compression drivers: GOTO, ALE and alike. I have voiced the near-similar outlook about the irrational exuberance that some audio people express about electromagnet ...
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I would discard the first part of your post. It is it truly irrelevant what Germans, French, Japanese or Brits were buying and what particular brand and in what time they consider as “fashionable”. It is know that Ebay or Akibahara popularity has...
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Well, when we are talking about Cogent we need clearly differentiate two things: the Cogent’s drivers and the Cogent’s installation. The problem is that since Cogent’s drivers are something so called “compression drivers” then their performance might...
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Well, whatever you do with your loudspeakers of with you whole playback system is kind of irrelevant if your drivers are not right. In my view the drivers are the very much heart of playback but in case of High-Efficiency and particularly horn-loaded...
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Don't know the Vitavox, but some of the old 15" drivers sound good up to 4-500 Hz. For my own current project I will be crossing a modern 10" driver at about 200 Hz, for reasons of efficiency, and not planning to use the walls for baffle extensions. ...
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Well, Tannoy tuned all their 10" monitors to play reasonably well down to about 50 Hz. Their monitors I heard were all variations of ported, with some of their "newer" monitors (70's?) using the ports to create more apparent bass, and those monitors ...
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Unicon, I would not argue that our ears just don’t care as much about amplitude as they do about phase; I have been pitching it myself. However, I think you do properly interpret the need of the “exact parallel sound from drivers”. The parallelness o...
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Romy,I half expected some kind of whipping from you which I fully welcome. I am guessing some of it is to see if I buckle and get all weepy under a critical look at my statements but hopefully you are just trying to possibly get me to clarify my obje...
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[quote user="Romy the Cat"]I was very slightly open the back chamber of the driver that gave to me some ease at lower knee.[/quote]Congratulations you have found and use this principle, otherwise the back chamber acts like pneumatic brake for the low...
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[quote user="Romy the Cat"]Do not worry, you won’t be happy with your new speakers
as well. It is a little dirty secret that no one told you yet: speakers do not
give happiness. [/quote]In my case only speakers can give me happiness, because with e...
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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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Oliver,
Yes, in the first links that you sent it is clearly visible a fabric suspension – very interesting. Who is that guys? Are his drivers commercially available? Well, I asked and then I made a pose for myself. Well, a hard-suspended and fabric-...
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Hey Romy,The Goto drivers (505TT, 100-8khz) and horns (S150, 150hz round exponential) finally arrived. I've only had them for a week so I can't say much about them besides they're not a simple drop in replacement of the previous 10" TAD woofer (200hz...
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These are clearly JBL pots and back covers (which have been milled flat). The refinishing job is quite nice, but the origins are clear. Also, the phenolic diaphragm is clearly for the 2482/2485 (and looks like a JBL part), which has a slightly wider ...
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Check out are field coil drivers and the blab it shows pics of the bass drivers as i build them you may fined it fun!! i always like you insight + field coils are easier to build these days that is why most of use do it and they sound nice.http://www...
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electronluv do's not have the ability to make beryllium diaphragms or
the legal stuff to even buy raw beryllium i bet with a little surfing
you may find the companys diaphragms i use .
Yes 3.25" is to help get beter HF extension but to also get a ...
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Guy Hi do you know the driver compliment, 703 I can see, Mike mentioned a 2002, the 'new' S2?What else Keith....
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Eduardo,
Thanks for your thoughts and illustrations. I also do not feel that loosely-suspended very small metal cone might be a right solution for midbass. To develop LF you need pressure, pressure is surface by exertion – there is nothing els...
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Romy:I think you may find the link and the shoot-out, of limited value as they are, of interest. The S2 did not fare well at all, not surprising really, given its idiosyncrasies and how difficult it is to get anything remotely acceptable out of it. h...
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I read at twogoodears’ blog that he is considering changing his Class A SS amp gainclone Multiamping:
http://twogoodears.blogspot.com/2011/03/multiamping-hell-or-heaven.html
Interning direction to do, I wonder why he feels a need ...
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Gday was thinking about buying these for a mid bass horn or may be a bass horn one day. There in terrible condition other then I think they have two real vitavox cones in them even though one has been replaced. Note the crack also. But t...
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Hello everyone,I have excellent news from Fane. After checking their old stock, they have now found and have confirmed that they have sufficient old stock of the 8 ohms or 16 ohms voice coils to offer everyone ordering a choice of 8 or 16 ohms.Qu...
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I also am selling my JBL 2490 mid-range drivers and perhaps a collection of my original Aura 1808 drivers. The 2490 drivers are new and Auras are some old and some new. I just do not see myself to develop any inspiration to use them......
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Hi Angelo,Thanks for the kind words about our website.Hmmmm... it is really difficult to make the sound of the Avalon speakers have no depth or imaging (I presume you are referring to the Opus or Eidolon? Their small Symbol speakers do indeed sound a...
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[quote user="Gregm"] It's better than a Marten Supreme because the mid is cut off @500Hz whereas Marten cuts it off at 1,3kHz "where the ear is at its most sensitive". Note: they must be referring to latest technology ears -- not the tradi...
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Ralph (Cessaro) is in the process of manufacturing his own compression drivers, I have no details as yet, I believe the diaphragms will be beryllium not made by TAD.Also new and ready for release ,although not shown at Munich are double skinned carb...
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Very good point - I will direct Martin's attention to this. Visually, it looks like he did an excellent job on the 340 Hz horns, and the 160Hz horns will be rolled off at 1k anyway but nonetheless, will see what he reckons. Actually, no need - I just...
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John Hasquin showed up a couple days ago and suggested that many of modern compression driver manufacturers design thier products to get the "best" publishable parameters while completely disregarding any basic horn design rules and actual sound resu...
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