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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Actually, when the string section has to play ultra softly, they use a mute or damper on the bridge. This is a device that limits the ability of the bridge to pass the string vibration to the resonant body of the instrument. http://www.youtube.com/wa...
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Their are a pair of Pioneer Beryllium ribbon tweeters on ebay
with about 8 hours left (Item number: 5790340383) for US$25
The part number is PT-R14A, maybe a distant cousin to the TADs??
Regards
James...
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[quote user="Marc HENRY"] For this Musique-Concrete horn system called "Grande Castine" (it was developped in Saint Cast Le Guildo, Britanny, France, from were females inhabitants are called "Castines" ) i prefered a modified 60Hz Le Cleac'h cylindri...
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I've been thinking about how I am going to wire these Bass Cannons as well as the horns on the horn stack. For some time now I have preferred ribbon/foil speaker cables for the relatively low sensitivity speakers I have been using. The reason I bel...
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OK Romy, I agree this should stay here, especially that I will probably have more observations to come as from the late January.
I didn't explain the context of S3 use in my future system. I'm awaiting for a delivery of Beyma TPL-150 which will be ...
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I would like to thank you for taking the time to give me a very satisfying answer and explain in detail your views on the whole subject and give a little more insight in to how you do things. Yes I suppose I really knew all along it was coming and w...
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Hmmm...
I like my tweeters +/- "matched" in terms of efficiency, but I am not starting out at 115 dB efficiency. Sure, headroom, practically speaking, is more than a mere luxury. However, is it really that hard to wring out a tweeter, and how muc...
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[quote user="morricab"]I do have a speaker with a flat impedance. It is an Apogee Caliper Signature with an impedance variation from 3 to about 4.5 ohms over the whole range. Fortuneately it is not so dead as your example as it has about ...
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Though he seems to like running several TTs in parallel, I do not interpret Pham's page to show that he is running more than just one horn system; what I see is an evolution of a system. It looks like, in its latest iteration (under the heading "Syst...
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Decoud, I do reject any speculations about flux modulation in compression drivers as I do presume that it is absolutely negligible. It is like using a SS amp with ultra low output impedance, to drive a ribbon tweeter and to worry about return current...
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If I may add, from experience, following and including Romy's post above:1) In cases of established incompatibility with a average power SET, more output energy (55W), will not completely clear the above 2) and esp. make 3) less "muddy" or ...
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It was an audio eventful year and I have experimented and discovered many fascinating things. Here is a brief summary of the 2007 audio-events and a short look what my audio happening will might take please in 2008.
1) In the very ...
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Andy,
I do not know how aggressive roll-off on obsolete values as I never cared to calibrate my analyzer/microphone above 10K. Well, it was calibrated a few years back but I never trusted to it as I do not see needs for above 20K lineriarity from li...
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Hi Romy,I agree its a relief to hear finally someone describing something. Because all the mysterious dust around it makes one really curious :) And you cant hear them anywhere.So i got really "tensioned". Finally... and id like to share about it. As...
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Romy, yes it is an interesting subject and one that I have thought quite a bit about although not directly from the angle from which you are approaching it.One of Macondos great strengths is narrow directivity from high frequencies all the way down t...
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RomyYour first question was "Does it do bass"... Yes, and it does it full frequency with great tonality. I am a ribbon panel owner as you may remember and also have modified Tannoys as monitors so I know easily when I am lacking in the bass departmen...
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Hi Romy,I think you may be struggling to get 10-12db of gain out of a spud amp (the term is a play on "one tuber").... May just about get it with 6C45.... remember you will be stepping down something like 12 to 18:1 on the OPT.best case: 10db require...
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[quote user="Romy the Cat"] The HF Range “F” channel: The 6E6P-DR at 30mA connected at tetrode. The filter is second order with Sowter 9858 Pultec MEQ-5 EQ Inductor 420/277/145/108/61/34 mH) and variable air cap. The variable inductance and capacitan...
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I emailed to Bo and he said that they can't provide individual units. There is another interesting drier out there. It is RBN180 18” toll ribbon with reported sensitivity of 110dB
http://www.alconsaudio.com/site/technology.html
I never heard it and...
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The EV 350 cones are still available form many sources, they are $25 per cone. There are some other phenolic domes for 1” driver, or smaller. I do not know anyone who does 3”-4” phenolic domes that would make them suitable for MF drivers.
As far as ...
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Yes, if you are at 40Hz first order then you are with regular dedicated LF channel and tone is certainly a subject. The entire definition of ULF channel inkstand or LF channel is that ULF channel has no tonal information. It is very same like use twe...
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Just how important are subharmonics and undertones in audio, and how they affect tone? I played around for a while with the Townshend supertweeters, this is a ribbon tweeter that you can barely listen to: you plug it in and put it next to your...
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Just thinking about it, it seems that in order for the sealant (silicone?) to adhere to the inner wall of the tube, the sealant would have to be applied to a tube that has not been in contact with the damping fluid, especially if that fluid is petrol...
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Alas, not much time to deliver the promised treatise...So, tantalisingly, I will suggest this; for the range 1k up, you would have no problem getting a small mumetal OPT made suitable for the 6C33/S2 combination. Actually, I have something simil...
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The main "technique" I use in "problem solving" involves a sort of Hegelian turning and re-turning of/to the object of attention (or, my perspective...) to get as many "views" of the object as possible. This sort of reflection has recently broug...
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I was kind of frustrated with some strange high frequency roll off at my HF and Injection channels. It should not happen. The 9H OPT LL1627 in Injection channels should be good up to 23kHz according to my former tests with a full range Milq and the T...
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[quote user="Romy the Cat"]… this conversation kind of “got me” and I consulted with people, who know theory well, asking them to provide their explanation of the angling phenomena. They explained the phenomena by the smearing the arrival time due to...
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[quote user="Romy the Cat"]
BTW, I was not kidding about the dual-concentric 8” Fane. They did make a version of Studio 8M with a tweeter in the middle. I have it sitting in my driver storage…Another BTW: the tractrix curve was not introduced by Br...
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Yes, Markus, thanks. It is a bit too obvious that Speedysteve7 is not a typical DIYAudio moron. As the evidence: pay attention the Speedysteve7 posted information about his playback and has no following. In contrary of him installation would be 2...
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Robert, what I meant is following: when you will be collecting requirements for you own drivers specification and will evaluate the implementation methods then you need to have you own identity what you are trying to do. I might post a lot of differe...
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