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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="decoud"] None of these seems to apply in your case because you have a properly levelled installation, directly on concrete [/quote]If I had it on a concrete I'd be very happy! On wood it is, mafrend, on wood.[quote user="decoud"]I see th...
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As a practitioner of vibration decoupling (stacore.pl), I second the idea. No gel, foam, rubber, etc will work on ULF as high mass + pneumatic mounts do. Pref. pneumatic damped too. I can assist with the design of the suspension. Cheers,Jarek...
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Romy wrote:"...What kind outer suspension it has, is it rubber?..." Correct (I know I know...)"...I think the key factor would be the degree to which the driver is able to decimate the LF pitches..."Pitch: The property of sound that varies with varia...
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i am a fan of this.
who said that music is supposed to be ONLY about sound ?
until recording was invented musical performance was never ONLY about sound. because there was also something to SEE for example.
although i can still hear 25 hz i...
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[quote user="Romy the Cat"]The microscopic movement and angling Rgs, Romy the Cat[/quote]I agree and understand how important is moving the speakers to find the symmetrical impulse from both channels BUT in microscopic movement we mainly correct the ...
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In the traditional setup of a single motor and platter the motor is "pulling" the platter towards itself, setup D. Could this be of any concern? Supposedly one of the reasons Clearaudio uses 3 motors (other than to charge another $10K) is to keep the...
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Just speculating, but a tense wire can transmit vibration way better than a loose one. Perhaps to have an accurate bass response you need to keep low frequency oscillations away from the platter, and the tight tape helps to drain them to the rest of ...
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I'll buy some more 7788 and give them a try. I'd hate to change tubes at this point. My triode connection has pin 8 (g3) to anode, not ground). I wonder if that makes a difference. Also, the power supply chokes are nearby, per...
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Romy,You were totally professional and proper; & I was greatly impressed with you reply.When I [zz] wrote " I do believe that it is best to minimize adverse contributions" -this statement was a reference to adverse contribution of vibration floor...
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There does seem to be a fair consensus the Airforce Zero (not to be confused with Forsell) is a success. I assume its success is due to controlling vibration. I believe US $400k is a sale price as reviewers say it will be Over $400k, not including th...
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[quote user="Stitch"] When you look at the data sheets, you see, that they have different Hz range with different weight. A reason why I added some more mass to my Micro which is sitting on a VP. [/quote]
Actually it is not my observation. In ...
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[quote user="Paul S"]If you can do it, try isolating both cases/chasses from your "ground plane(s)". Use one inclusive "ground plane" for both the PS and the gain/RIAA sections, and ground this "ground plane" to the house "neutral" wire. Do NOT conne...
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[quote user="Paul
S"] Am I the only one who wonders about parking the amps on the woofers? [/quote]
From the point of view of a methodological purity indeed the location of a vacuum
tube amplifier atop of midbass section does not make any sense. B...
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It possible that those systems exist but I never heard about them and even I think it is too late to invent the thing for record playing but I still do like the idea.
Pretend a needle reads grooves. Depth and the right-left variation of the gr...
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Last week I had an audio visitor from far US state and listening Sound in my room and wanting to make a compliment to me he said: “of cause, no one can’t achieve this bass without your solid floor”. Being asshole as I am I begun to stress with h...
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Interesting… I was under suspicion that only Vibraplan allows LF decoupling but here is another California company the offers an alternative solution.
http://www.minusk.com/
The Vibraplans did work fine and the principle was very simple, I read wha...
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Forget about the vibration! Those vibrations are representing jus one aspect of the problem. There are many others as important aspect, and to fight/name the only proposed vibration course is as necessary as to expose a lend worm to a psychological t...
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...of wines and power conditioners and Bruckner and cigars. That said, I don't do cigars; I really, really do do Bruckner; power conditioners vary in their effect from place to place, day to day, and hour to hour (not only that, but most of them need...
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[quote user="Romy the Cat"]I am personally inclined toward the BC scenarios.[/quote]C allows for manipulation of the Platter 1 bearing with different belt tension in a linear fashion that includes a potential nadir in friction. B will hold the ...
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Last month of two I keep thinking about the super-meaning of lowest octave in sound reproduction. It is not about the importance of the lowest octave for sake of audio reproduction, there is a lot about it in other pleases of my site and anywhe...
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I think your problem with acceptance of “absolute tone” derives from your visualization audio tone is an imitation of musical tone. It is correct t form one side and it is a strategic mistake from another side. Let me to state it again and it is very...
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Time Allignment has nothing to do with the placement of instruments in an orchestra. Did anyone wonder why a violin playing 2nd space A sounds different that a trumpet playing the same pitch? In physics, when a string or air column in excited into ...
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I had the same problem with my 6 foot, bass horns , which were built from 3/4 inch high density fiberboard. On doing some measurements back then, it turned out that they were vibrating for a few milliseconds after a pulse, giving a decent rise time b...
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Hi Anthony Agree, waste is waste. The bigger the better. If you care bout sound too, i recommend the RG213 radio cable. Its perfect for that purpose. First, its coaxial which eliminates the inductance. Second its very hard so that during vibration th...
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[quote user="Romy the Cat"]Ok, here is another subject. I feel that I kind of screw it up as I did not foresee it in my planning. What I need is to add some decupling devised to my horn in the location where it will be mounted to the surface of the ...
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Ok, here is another subject. I feel that I kind of screw it up as I did not foresee it in my planning. What I need is to add some decupling devised to my horn in the location where it will be mounted to the surface of the house frame. The horn will ...
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Romy, thanks for the explanation.
I was not sure if you still kept an eye on that thread Romy. As far as I know you need to be logged in to view the images in the diy threads so I will post a couple here to show where...
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Looking at the better photos, with a rear view of the LF speaker, the "felt-covered large port" is actually not the worst possibility (a quasi "IB"), depending on some things we can't see and how well that driver "likes" it. I can also see that what...
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How strange... I was thinking about this, and discussing it during lunch @ the lab a couple days ago... Got there from a totaly different direction though, was thinking about harmonic vibration dampers used on crankshafts, (usua...
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[quote user="Romy the Cat"]What attracts me to the TW TT is the idea that it is possible to discard anything that we might consider important but to make the platter as a sandwich what the bottom of the platter care bearing but the top of the platter...
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