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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="Romy the Cat"] A few years back I wrote somewhere that I “developed” a semi-mathematical formula according to which an acoustic system’s result might be absolutely objectively weighed up. I did not go very far with advisement of this eq...
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Well, I reacted about your commentaries about the “tilted up high frequencies character”, nothing less. I personally do not feel that such a problem ever exist. I do read your blog sometimes and I do feel the Japanese influence. Anyhow, the SG-37FRP ...
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Romy wrote:"...The use of the Vitavox AK151 driver is very good. They went for 8-ohm coil. Well, this is interesting. Srajan promoted in his article Kevin and SET devote and then Kevin drops the AK151 impedance from 16 to 8 ohm..."According to the V...
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There are two YL Acoustic Compression drivers flying around:
D-5500G, .6” lower MF, 100 Hz -7000Hz, 15W
D-3500G, 1” upper MF, 500 Hz -9000Hz, 15W
They are YL are pre ALE driver and they might be interesting for somebody who would like t...
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Romy, can you tell at this point if the driver, operating points, or the particular 45s are "at fault" here, and/or all are in sync? The only "magic" I noticed from the few 45s I have heard (but not seriously played with...) was the uncanny sens...
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Are you decrying the use of field coils per se? A friend has been experimenting with them in a specific utilisation and has had very promising results....
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Looking at the picture again i see the Utopias drivers are angled. Thats the difference. Yes i agree that must not be good for coherence outside of the sweet spot....
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I wonder how far one could get to the traditional horn ideal (low-ranging compression driver plus some metal shimmer on top) with a BMS neodymium pure mid driver and a Celestion/Eighteensound/Beyma with aluminium diaphragm.BTW, something with berylli...
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[quote user="Romy the Cat"]I met once the filed-coil version of KL-L405. The electromagnetic version was very poor sounding [/quote]There is no such model in existence....
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So that's the story. I've never really paid any attention to the Magico speakers. I Googled their name and saw the words "Extreme Fidelity." That instantly killed my curiosity and I did not continue searching. Just anothe...
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[quote user="el`Ol"]Romy,
I find the Veravox 5 drivers are strong contenders when searching for elevated sensitivity 5" drivers. I heard the Veravox 5X in combination with Shindo SET electronics and found it very natural-sounding. Both 5ers have cer...
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Hi Romy:See below an interesting approach. It probably violates some of your axioms but it does seem rather promising methink, without having heard it. Maybe Jessie Dazzle knows about these and could give us the lowdown as they seem rather close to ...
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Meyersound has the patent for a suspension that consists of copper-beryllium plus damping material. Copper-beryllium has a young's modulus comparable to polymers, but a bending-linearity that can't be achieved with plastics. The old Meyersound driver...
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[quote user="haralanov"]When all of these 5-6-7 different types of distortion mechanisms are eliminated (I mean lowered), one has the opportunity to hear the unmasked/undistorted tone of his bass. I deliberately used the word “opportunity” because no...
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Well, the game with a “better” 10" bass driver is over. After years of mind looking for the 10” light-coned, papered 20Hz drivers with higher sensitivity and after a month of quite active searching for such a driver I concluded that such a driver jut...
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Allo R,Not to start a pissing contest, but how are they wired (series/parallel?), and with what voltage across them? Something just can't be right; the makers spec is 88db / 2.83V, which is over 1W. Unless it's uniquely smooth room gain with the arra...
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The Caire HW250 is the closest driver I could find to the spec you desire.
90dB 1W/1m
Fs 23Hz
90W 8ohm
Datasheet is here
http://www.ciare.com/pdf/catalogo/HW250.pdf
Regards
James...
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Hi, Ronnie.
I do not know what happen with emails, you probably should not use the world Viagra in there… :-)
Anyhow, the 25w/8565-01 drivers are optimized for ported enclosures. I porously never had them and never used them, so I could not be help...
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Let start from the largest drivers and go down. There are larger then 18” drivers (23” and 30”) but looking at this magnet structures I do not find them serious. I addition to make the 23” cone stiff enough requires a lot of diaphragm’s mass or to us...
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I was thinking about what I previously wrote while driving today... thinking about the way people "see" the function of a driver... and about resonant properties of various materials used for speaker cones... I think it is more interesting than compa...
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Romy,
if you see my post you will notice that I mentioned I did not know of any drive units that could successfully be employed. Can you list some?
Here is a typical high quality 15" cone - indeed one of the finest on the market today. It is in...
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[quote user="Romy the Cat"]You have no idea how loaded this question. The crossover point with the MiniMe is not a tactical question but actually the very strategic question of the entire speaker, let me to explain why. The woofers that I use are fai...
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Maybe I'm not following novygera but isn't that what electrostatic speakers already do? I mean the full range ones. I thought some of Magnepan's smaller models only had quasi ribbon drivers also. I agree that it is not likely that one type of speaker...
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How does the SPL/dynamic range correlate to frequency? Most of the old 10" drivers can play louder if not pushed down too far. I think as the years passed, the Tannoy had like most similar drivers a sort of "sliding scale" dynamics, and they would pl...
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One might think that the BMS coaxial compression drivers might be especially coherent and superior to the dedicated mid-high solution, but I find there is something wrong with them (and I don't belong to those who dislike the character of BMS drivers...
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http://www.anl.gov/videos/acoustic-levitation
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Hi All.I'm reluctantly selling a pair of Vitavox 12 cells and a pair of GK 379 drivers. They are currently up on ebay.If anyone is interested or wishes to make a decent offer, all the info can be found here:Horns:http://www.ebay.co.uk/itm/VITAVO...
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I got an email from a site visitor informing me that there us a set of cheap ALE drivers at London Craigslist: http://london.craigslist.co.uk/eld/4435844980.html(copy locally to have it available after the Craigslist posting will be gone) "ALE Acoust...
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I probably missed it...
and one more:...
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My experience is what Romy would call primitive, but I did hear these horns and can only compare them to sound reproduction in general, not other horns. There was a sub as part of the scheme, don't know if it was actually part of the original d...
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