|
|
| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
|
|
 |
|
|
|
|
|
I totally am a believer that the construction of a tube determines how it will sound. This makes perfect sense when you consider the tube is relies on the changing flux of electrons in a vacuum. It is easier at least for me to visualize this as a ph...
|
|
Romy,
I assume you plan to use one of these as the driver tube. Do you distinguish any difference in the sound between the two tubes? I am curious as I have been looking over a big pile of them and they respond quite differently regarding vibrat...
|
|
[quote user="PurePower"] You point out that if a capacitor can hum it is faulty and wound improperly.
You are absolutely correct - the way a capacitor is wound will determine if it can hum or not. Unfortunately almost all capacitors on the m...
|
|
We should define some borders here; LF, when you have an UBH, should be from around 100 hz down to 30 hz, where the last fundamental tone of an instrument is played. ULF should be under 25-20hz.I would say that a driver playing 25-30 hz should...
|
|
[quote user="Romy the Cat"] I do not know if “stupid, indiscriminative mass loading is a road to nowhere”. [/quote]Let me try to explain why I think so. Adding mass (e.g. sand+shot loading of steel profiles):1) makes the vibration amplitude smaller f...
|
|
[quote user="Paul S"]Here is the expensive unit I saw first: http://www.lampizator.eu/Fikus/GOLDEN_GATE_DSD_DAC.htmlSolid construction and fancy parts, for sure, but my uber question - of course - included the question, what - exactly - are people li...
|
|
There are a few manufacturers out there, Minus-K, Halcyonics, Vibraplane...The Vibraplane is a good unit for the money, I have no problems with it and it does the job the way it should.Those Vibration units work different from construction and are ve...
|
|
I have been using my Ekornes Manhattan chair and generally I am pleased with it. It is a bit not deep enough for the taste of my ass but with footstool it works fine. There is however an aspect in all of it that I do not likeand that I did not think ...
|
|
Wellington,It is my understanding that lead was used because it'a anti an anti-seize properties. The bearing fit is very tight and I suppose this helped with the lubricants of the period and is not a problem with modern synthetics.The bearing does no...
|
|
Making my little research on vibration isolation, I came across those fantastic pictures hereof how Proscenium suspension is made:http://www.6moons.com/audioreviews/walker9/2.htmlI've always thought that he uses some custom-made pneumatics,but those ...
|
|
[quote user="jessie.dazzle"]… I do not fully understand the relationship between output impedance and diaphragm control; also I don't know what you mean by "negative impedance". Your mid-bass drivers have 15 Ohm coils; from what you write, I assume y...
|
|
[quote user="Paul S"]N-set, what about LFs sound and music choices, and how does this vary from your own choices and expectations?
Paul S[/quote]The bass was dominating very much the spectrum and thats +\- the only thingthat stayed in my memory. It ...
|
|
Koetsu are crap and it is sad that some ognorant or criminal people crated so much hype about it. Might be in past it was better, as it was proposed above by somebody in this thread, but I doubt as I know people who drooled about Koetsu 20 years back...
|
|
Maybe make a manifold and mount drivers vertically in push pull. No sagging, much less vibration. But I would not use fiberglass insulation behind the bass channel and remove any existing fiberglass in that area, replace with cotton/denim insulat...
|
|
[quote user="Romy the Cat"]Well, wait what you put properly working
PurePower generator on your dedicated line... My estimation that a dedicated
line gives 25-30% of benefits that comes from good electricity.[/quote]This is very encouraging as the ...
|
|
[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...
|
|
So here is the promissed picture of yet unfinished rack:It's huge (the columns are 10x10cm) but still quite elegant-looking in my room. The electronics rack on the rightwill be put inside the TT rack when I finish working on it. It's all thick (4-5m...
|
|
Hi Romy,It seems that the idea of tone is not only lost to most speaker designers but to most electronics engineers as well. When you hear the excrement most designers call an amplifier you would swear that they have never not even once heard a real ...
|
|
Thanks, Jorge, but what you propose and what is done at the pictures your posted has nothing to do with Infinite baffle. This configuration rather reminds me the 4th order bandpass. It is popular setting but it is not what I like as the bass coming f...
|
|
So I am currently working towards this concept for my Macondo (see below) and I have just the Upperbass horns left to turn and prep. I am thinking about how to best integrate the DSET with Macondo and have come up with something like this… Perha...
|
|
I got some time on the PC to start to think about how to layout the DSET. I plan to build it a little like a skyscraper: multiple levels separated by component groups and functions. So mains transformers, AC socket and perhaps time delay rel...
|
|
[quote user="Romy the Cat"]The point that you have EU (240V version) is well taken.... [/quote]LX, I wonder if in context of dimmer and PurePower regenerators the voltage of a given country make any difference. PurePower is essentially a power amplif...
|
|
[quote user="noviygera"]I feel that the best candidates are metal springs. 1. They won't compress or deteriorate quickly.2. They work good in the used freq. range.3. Easy to replace. Easy to tune by adding or removing springs.4. Easy to float the ent...
|
|
I am not and expert in wood construction, all the building we do around here is brick and mortar, but, If you get the Horn wall close to the roof you could fill that space up with that spray expanding foam. The side of the Mid bass horn will be sti...
|
|
Romy,I could not agree more! The only reason that I mention it is because we do see enough speakers with exactly these acoustic instrument problems: energy that leaks through the horn material, ringing from undamped material, wrong cutoffs (a trumpet...
|
|
I used those VPI magic brick sitting on top of the transformer, my audio analyzer tell me that these bricks helped the noise by about 1db, may be the 6 lbs or so weight does damp the xformer vibration, so I leave them on, just trying everything to ke...
|
|
A few years ago somebody, I think it was “drdna” from California, told that he has a habit to listen the mechanical noise of the tube hold the tube at his ear by hitting the balloon of the tube. I did not exactly acknowledge it at that time as it was...
|
|
N-set, you may remember that from the beginning I encouraged you to try a wall mount, for all the reasons you have just cited, and this approach seems even more obvious if the walls are concrete/masonry vs. floor joists and sheet subflooring, not to ...
|
|
My main 6 speakers are modified Edgar horns with 105 dB/ watt sensitivity, and the others are overhead emotive speakers with standard 90 dB/ watt sensitivity. There are two JL self powered f12 subs, and 4 self built subs with a sherbourn five channel...
|
|
[quote user="joaco"]
bernie_f wrote:fresh powder snow in the countryside? The zillions of crystals of water are doing a perfect job of damping noise - at least in the audible spectrum.but the point is that there are so many variables out there tha...
|
|
|
|
|
All context of this site except the Forum's posts
Copyright © Roman Bessnow 2004-2024
All messages within the Site’s Forum Copyright © by
authors of the posts
|
|
Last 24-hours posts: |
0 |
|
 |
|
|
Total human visitors: |
42,921,845 |
|
|
|
|
|
|