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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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A six year ago or so when I played with different compression drivers I bought a pair of Dukane 5A540 and at that time I was not able to find any information about them. Nowadays I was pointed out that an eBay sealer “ bayleafs” actions a pair of Duk...
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I have written in past about my lack of love to the BMS drivers. The crazy, as far as I concerned “annoyingly wiling” angeloitacare brought this subject to this forum while he was galloping across Web, “picking from graves” about his new dB-Design’s ...
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Yes, it’s the drivers that inspired me to write up this thread. The response looks like it rises slightly atop but it is almost OK for this type of the drivers. Running the driver off the axis it is possible to roll off the HF rise. It is pretty much...
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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 drivers manufactured withi...
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[quote user="RonyWeissman"]The electricity comment is interesting as today I put on some jazz music and the HF is very snappy, excellent! I feel like posting on AA to ask people's opinons if it's the electricity or if my concrete horns are going thro...
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We, the horn people, know what the compression drivers could do. The controlled dispersion, low distortions, low mechanical dependency, low magnetic anomalies, high efficiency, higher maximum dynamics and many-many more advance are well known. The te...
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[quote user="Jeffrey Jackson"] first, basshorns... the basshorns that I posted here some years back are my straight ~50Hz horns (my memory is fading)... they are 8' long... then rear chamber.. mouth ~ 3' x 4'... throat ~8" x 8"... rear chambers of va...
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[quote user="be"]The best driver I have heard is the TAD 4003.
It does not use the secondary resonance of the suspension, as described by Duke LeJeune above for the TAD 4001-4002, to extend the response towards 20 kHz, but has a natural roll off fro...
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I still remember proposed solution for symetrical TAD 1201 horn loaded midbass sections. Was it to free listener from sweet spot low seat position ? I could imagine that that midbass horn performing up to 1000Hz sitting low on the floor would impair&...
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[quote user="coops"]…. Avantgarde charge how much for their large Trios yet the modified conventional drivers they use cost only a few bucks each… [/quote]
Avantgarde Trios were $38K retail, overprized but still conventional in the world where the M...
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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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Well, I'm hoping the Azzolinas have something going for them. After all, it's not about theory but results. They came recommended as decent, so I invited them to be in my RMAF06 room. Yeah, I committed myself unheard, unseen. ...
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OK, Romy, that EnABL stuff got my attention!I can't recall all of the bad ideas borne of good research, but this EnABL thing sounds a little fishy, and certainly it sounds too good to be true, as existing in a simple and really useful form. Can...
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Gentlemen,
I suppose it is time to defend my sterling reputation here. The EnABL process does in deed work across the full frequency band. Works on all driver types and permits the very qualities that Romy seems to appreciate in the treated Linneum ...
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hi romyi am listening now abought 2 weeks my orphean horns. when they arrived, i first connect them to my electronic crossover, and they sound horny, very bad. after i connect them to the own crossover, sound changed right away. now, that i heard mos...
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If you ask me the compression drivers is like the jbl 2420/2470 design only with an other back chamber. And the low freq driver really makes me think of an old alnico driver of jbl 2220A http://www.lansingheritage.org/images/jbl/specs/pro-comp/2420/p...
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Why do we use DHT tubes? it is not because of their technical specifications. They have low transconductance, a problematic direct filament, and they cost a lot.Obviously, it is because of their sound. Some people like it and some people don't.The DH...
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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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I seem to remember that we've covered somewhere the sonic benefits of SET at lower frequencies, but I guess I never really thought of ULF as "bass", per se. If someone ever comes up with an SET that can be an effective part of an AuraSound circuit, ...
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[quote user="Paul S"]All I want is wide-range drivers as fast as a Lowther DX4 [/quote]Paul,
I have listened DX4 driver. In my view
this fastness that you report is completely artificial and absolutely non-musical
as it does not have any relation...
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By the time I got seriously involved in hi-fi, in the early 60s, speakers and their drivers were already undergoing significant changes from which they would never "recover". Basically, for reasons that are no longer clear to me now, drivers and...
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