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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="hagtech"] Aw crap. Does that mean I'm responsible for everything Bush does? [/quote]
From historic perspective, yes we Americans are more responsible for what Bush does then Mozambiqueans for instance. A hundred years from now peo...
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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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[quote user="be"] "another big selling point to me was the 505 being a low resonance compression driver.. there just aren't many drivers with a resonance in the 80 to 100 Hz range like this driver... I have just begun my playing, but am already quite...
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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="Romy the Cat"]
Let do not forget that acoustic space also have own compression… not to mention that the performing intend itself has own “compression”.[/quote]The question of 'self-compression', where the performer moderates their perf...
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[quote user="Romy the Cat"]One of the emails that I receive is very interesting. The author warns: “...when experimenting with throaths I found that if the compression is big, near 2 or higher you get some big, smooth, unfocused aqualung sound. You...
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Hi Roman, hi all... intriguing post and interesting questions, as I've been for about 20 years a triode and, before, a tube user and a glowing-in-the-dark maniac.My experience...I purchased - years ago - an Hiraga 20W which I used as a bass enclosure...
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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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I was right before but now I really review my rightness for a new perspective. Yes, the compressions drivers are the subject of clean signal but it what I witness with the new 6-chenals DSET put what I said above in another extreme dimension. I do no...
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Thanks, Paul
I have seen your comment about the TAD bug screens at AA. The bug screens are a touchy subject – with some driver removing them works fine with some made sound worse. I did not experiment with TAD’s bug screens…
Generally the bug scree...
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Yesterday I spoke with a guy at a Russian audio forum who reported that he played with addressing many problems of compression driver by pumping ferrofluid in the gap. I am not a big fun of ferrofluiding generally and in case of compression drivers i...
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[quote user="Romy the Cat"]Of cause not but did you read and understand the Macondo
Axioms? The Macondo Axioms proclaims that an individual driver and individual channel
have to be set in maximum suitable for own topology operation. According to Go...
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Xandcg, these bass compression drivers is a controversial
subject. T think there are 3 of them ALE 160 and P1260
and GOTO SG-146LD. I think they all 4”, it would be very nice if they were 6”.
However, 6” exit might be a bit too wide for compre...
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I spoke to the owner of the company. The drivers are copies of Western Electric 555 (but the owner insists that they use genuine NOS WE diaphragms membranes) but they can be custom made to fit in with one's requirements. I didn't know such a thing wa...
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I'm of the opinion that listening room aesthetics play a big role in enjoying music at home. This is self-evident, but over the many years playing with audio, my listening room has become incrementally cluttered with "audio detritus". It's ugly and...
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[quote user="horny"]… me too would like to achieve as good as possible violin reproduction without spending a fortune on exotic or vintage drivers.[/quote]
I have voiced my frustrations about many contemporary compression drivers. People who manufac...
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Hello John,The woofer is Fane Studio 8M and throat diameter on the 115Hz horn is 5.56".The initial 4.5" depth of the throat is made up by 6 MDF pieces with rough edges (awaiting bondo smoothing).I can easily add 3/4" pieces to the throat section to m...
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ATTENTION SOUND ENGINEERS
Dear sound engineer,
As you certainly know, a recording that sounds BAD on a "high-end" or "audiophile" playback system may still sound GOOD or at least acceptable on a the average more modest mass-marked systems (such a...
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Correction :
In the previous post near the end, I should have written as follows:
The other day I tried letting the 180Hz lower-mid horn do more and the 400Hz upper-mid horn do less, by moving the crossover points up (I do not attenuate the low...
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To assess how far audio imaging from sound of a ”live” musical presentation we need to subtract visual experiences from perception, including the long-lasting visual experiences. I would agree that focusing ONLY on imaging can lead attention off beam...
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Hi jd*,Unfortunately the minorities always get screwed and this case is not different.Most people out there listen to music as a background or head banging noise, there's no way around that, and wide dynamic range is not compatible with this.It would...
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It took for us, for the people with brains and ears, a few years to explain to the foolish audiophiles the artificiality of their soundstage objectives. Six years ago when I was tiring explaining to the audio-zombies that soundstage is juts a surroga...
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[quote user="Romy the Cat"]
One more tip. The “least dynamic compression positioning” mostly managed by upper bass and bass channels while in the “imaging positioning” the MF and HF channels play more dominating roles. Therefore, if you use a typica...
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I did not like the two slit configuration of the phase plug..but the five to one compression ratio produced low distortion,,,but i was not impressed with its bandwidth,,,JBL also used a eight inch speaker assembled to a special phase plug,, You will...
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This was noted on the Yahoo FMtuners site and is an interesting, fast read on compression at WCRB:http://www.thebdr.net/articles/audio/proc/ClassicalAudio.pdf...
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[quote user="op.9"] That 18 Sound ND2060A looks very interesting to me. And would fit in with my silly philosophy of only using currently manufactured components... [/quote]
That ND2060A does look very interesting. I never heard or even saw it...
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[quote user="Johan Dreyer"] I had a SG370 mid apart only yesterday.I should have taken a photograph. I have also seen the inside of the tweeter. They are very similar, so I have no reason to suppose the low mid SG 505 will be much different. I'll try...
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Well, it is a good subject and my reply probably will be lengthy. However, do not expect to read anything worthy in there as I have no answers.
We all know about the compression, the people with develop listening culture and more or less evolved lis...
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Well, it is a good subject and my reply probably will be lengthy. However, do not expect to read anything worthy in there as I have no answers.
We all know about the compression, the people with develop listening culture and more or less evolved lis...
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