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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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[quote user="decoud"]It seems reasonable to begin with the science -- as a preliminary to listening -- but I do not follow the logic here. The source of the vibration is principally the floor: the table should therefore not be coupled with spikes but...
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Decoud, if you look carefully at what I'm doing you will see how and where the table is decoupled.The logic behind the high mass I've already explained. I was unaware though how tricky it is to implement-this is my 1st construction.The logic behind d...
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Paul, I did not dismiss result-oriented solution. I'm fighting hard to get one actually. Honestly, I initially hoped that brutal mass loading will be enough to deal with what I have,and as a bonus I'll have a +/- universal solution I could move when ...
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[quote user="Paul S"] I wonder how much hitting the rack feeds the floor/cavity(cavities).[/quote]Paul, standing barefoot right next to the spikes and hitting the rack with my palm's base moderately(like if I wanted to push a bit blocked door), I ca...
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...with Romy. So far it has been all abstract, following some known good solutions (like Vibraplane)...and it will largely stay like that for some time unfortunately.My actual space is too small to build a reasonable acoustical system, I use headphon...
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[quote user="N-set"]A very approximate calculation shows that in my case I should have the profile fundamentals around 20Hz, soperhaps what I take as subsonic vibrations are actually 20Hz, poorely damped due to the added sand mass. I've ordered a dir...
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Rings=poorely damped, due to its crystaline structure. Take a granite tile with two fingers, put your ear close to it and knuckle. Observe the sound.Repeat with other stones to compare. For that reason it's neither used in nanolabs anymore (see e.g. ...
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[quote user="Paul S"]Again, you might gain something by fastening the rack to adjacent walls and adjusting the tension and/or damping of those connections. In any case, you'll want to prevent swaying of a TT support, and likely a CD transport, as wel...
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[quote user="Jorge"]
For some reason I cannot post pics, they wont upload to the server so I cant select them.The way Aurios work is with 3 ball bearings rolling inside a round chanel, something like an inverted doughnut...top and bottom.On the cen...
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Paul, I hear you clearly re wall mount. Well...I have chosen the hard way an occasion to have one, +/- universal solution I could "copy&paste"if I change location. Go through that hell and have it done once and forever. I even ask my daughter to...
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I think I've slowly started to understand the behavior of my rack.A very approximate calculation shows that in my case I should have the profile fundamentals around 20Hz, soperhaps what I take as subsonic vibrations are actually 20Hz, poorely damped ...
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Paul, I can olny speak within my context and with no audio tests, only knuckling.I use pure silca sand in 3 granulations (2 of them fine unfortunately), mixed with steel shots.Of course the sand is there to quench the steel ringing. But while achievi...
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Ok, 2 thoughts:1) Forsell seems to have some air suspension for the CD platter. I don't know in which axis/axes it works but if in the same as the rollers (lateral motion+torsion) then there is a potential for a troublewith a double compliance system...
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Jorge, do you have any picture of those Aurios? Do they have two caps to hold the ball or one?If two, did you attach the upper one firmly to the component or simply put it on it, using weight?How would you describe the negative sound change?Is Forsel...
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[quote user="N-set"] I'm looking for a nice material to interface between the steel frame and the slate topas a contrained layer--would be a sin to loos such an occasion for constr. lay. damping.After some research, Sorbothane seems unsuitable as it ...
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[quote user="Paul S"]Well, I hate to think N-Set's efforts equate functionally with such a "basic" solution. [/quote]In general of course I agree, Romy&Paul! But there are few niuances, although how importnat sound-wise I do not know. First, Vibr...
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[quote user="N-set"] Add to that marbles in egg holders and you have a real 6 axis decouplers, lightyears better than any audiopedofile $$$ spikes/cones/stillponts/HRS etc. Thank you Bary Diament for enlightning writings:http://www.barrydiamentaudio....
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[quote user="Romy the Cat"] Very slick and very inelegant. [/quote]Hahaha, thank you Romy :)[quote user="Romy the Cat"] Juts to ice the cake I would provision 4 hooks atop of the insert that would allow you to hang the insert to the air-suspended pla...
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Romy, there will be an inner cage for electronics inside the TT stand:This is a sand+shot filled steel frame topped with the same vulcanic slate as the TT stand.I tried to put the cage a la RixRax but it did not work(the picture&explanations are ...
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Below are some pics of the final TT stand assembly. Visually it turned outbetter than I thought (although width/heighth proportions are ugly due to space constraints).The pneumatically suspended top is on it's place, with the120kg slate slab on it. I...
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Paul, I've been definitely looking at the DIY CNC "market" for ideas!! Esp. regarding the frame construction.The problem is that they are happy once all the frame resonances go to 3-5Hz, so they usea lot of mass loading. Here, my airsprings resonate ...
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Yes, I was thinking about lether too. Felt is also an option. However they both seem to me not"viscoleastic" enough and good primarly at HF, while the damped steel profile vibratesmainly at LF. I was thinking about solutions for car deadening either ...
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Paul, thanks! But the interface I'm thinking of is between the steel frame you see in the pictures and a slate plate that will come on top of it.Something to put on top of the steel profiles, some good viscoelastic, comfortable in the constrained lay...
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Here is a little update on my DIY suspended rack.The top TT table is made and preliminary tested for lekages.This is basically a 1,4m x 0,7m DIY Vibraplane clone. The steel profile is now filled with perlite. I feel it damps worse than sand+steel sho...
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Next level of foolishnes: $2800 for a record clamp (!!!)http://app.audiogon.com/listings/tweaks-shun-mook-lp-clamp-and-accessories-2013-11-22-accessories-canadaBravo marketing people!...
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Post #53:
AE
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by
N-set
on
2013-11-10
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[quote user="Stitch"]Probably Albert Einstein was an early Audiophile, don't know, but to quote him: "Two Things Are Infinite: the Universe and Human Stupidity"[/quote]He was a physicist, he knew how physics looked like from the inside....and the thi...
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Ok, I have not fully seen the temporal context, it was 1993!! Chapeau!I did read about the algorithm, I just reacted to the claimes about the balanced DAC being "also unique",which I quoted in the first line.Now I understand, it was in its time. Diya...
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I did not have time to read the articles carefully, but:"The IDAT’s D/A conversion stage is also unique.""In the IDAT, two DACs per channel are used for each half of the balanced data signal instead of one."...the very idea of balancing DAC's is not ...
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Yes, my question above was not without a reason.Esp. why Mr. Heisig decided to copy&paste his postingon Omnigone from so-much-hated WBF here, 1+year after? ...
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