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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Romy,You may post the paper if you like. It is public domain material. I did send a copy to Antonio so any immeadiate need has been met.If you meant that you want to explore this process on your own, then you need some basic supplies. 1. Speedball pe...
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You were given damn good advice Bud. So much has disappeared into the Black since WW2...
Through symmetry I would guess your technique would be appropriate to microphone diaphragms too.
I have taken the liberty to send a copy of your paper to...
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But why would you consider brass connectors because of 95% of boutique RCA if the idea is to wind up with the best signal path?Probably, you will not use continuous wire from the cartridge coil, and you will probably not solder but use some sort of c...
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Well, the electricity suddenly switched gears today, and it entered into an entirely unknown level of cleanliness; and what do you know? The "cables" pretty much became a non-factor. I suppose this means that noise is A Very Big Issue mos...
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Paul,And any one else that is interested in what may be a new leaf in the Lowther book.Please go to the first post. This is from a participent in this forum. He may choose to speak up and he may not.http://www.diyaudio.com/forums/showthread.php?posti...
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Bud,
Thanks for the offer but I do not know if you knock into the correct door. You see, I do not build theories or conceptualize audio generically. I am a very sensible person who practices applied audio. All those conversations about audio and thi...
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Romy,Try wrapping a copper wire around a power cable, then "inject" it into the power line through an isolation transformer. The wrapping only to help defeat the antenna event of other signal sources that only have one vector.et all,For cables, the m...
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Here is what I substitute the Celestion original copper. It is Linaeum Lweeter modified by Bud Purvine from Seattle. I do appreciate the Celestion copper tweeter more – when it is new and works properly, but I have no copper tweeters anymore. The Lin...
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[quote user="Bud"]… do yourself a favor and purchase an APC 600, one of the light tan models, not the noisy, smelly onyx models. Do not run it from the PP 2000 , run it from the wall. The PP 2000 will then shelter your other components from this newe...
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All switch mode power supplies that receive a CE, UL or CSA approval have complete isolation from the wall voltage, across the dielectric barriers of a transformer, from primaryto secondary.The isolation of noise occurs because the incoming wall ...
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Yes, Bud, I agree that the most common problem for the full-tilt regenerators is that they begin to exhibit various problems in direct proportion to current demands. And this seems to be true even when they are used "below capacity" as stated by mfg...
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Hello chaps,Firstly, something I forgot before was that the high impedance coil will have more turns... so the DCR etc will be stepped down as seen by the voice coil. My guess is that overall it will still provide slightly less damping, due to imperf...
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Wojtek, I do use 8 Ohm drivers, and I am mildly curious about the "pattern" thing. As I said in posted responses to Bud, I +/- accept the science but suspect the implementation in this case; however, I would be happy to give a listen...
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[quote user="Bud"]In that vein..... the only CD's that I have found to be worthy of using, to copy audio to, are made, or resold, by TDK as the Music CD-R (not CD-RW). The important point here is the moderate green cast to the plastic. This reduces t...
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Hi Romy,I think you may be struggling to get 10-12db of gain out of a spud amp (the term is a play on "one tuber").... May just about get it with 6C45.... remember you will be stepping down something like 12 to 18:1 on the OPT.best case: 10db require...
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YAWN...wake me up when the war is over...If you can't relate to individual personal enjoyment as an ultimate goal of audio, sorry Bud, I can't help ya.I doubt you like what I like or listen to what I listen to. I'm a blues harmonica player. Since my ...
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Well, John, I had a feeling it was something like this. Plenty to process. It looks like the only "easy" road for the DIY crowd here at this point would be (isolated) filament supplies using your pre-loaded boards. In the meantime, I seriously dou...
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Hi Romy,Agreed about the S2 transformer being the most prominent it is here I think that mumetal will shine. I should have said that I was referring to the upper S2 covering 1k-12k or so. I wasn't too clear earlier - when I suggested rolling of...
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Bud,
thanks, perhaps I will get in touch with him but I do not know what I might doe with his AB amp…
Still, I generally have difficulty to talk with audio people and to extend any credibility to what they said if I did not experience personally ...
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Hi,[quote user="Romy the Cat"]However, even if you did succeed to preserve dynamics in your line-level transformer then the LF cut off of this transformer will “get” you. The solution is very simple: do not run any transformer attenuators within a re...
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Hi Paul,The net gauge for one cable of the 140 strands of #40 stuff is #15 AWG, as far as circular mils of area vs current induced heating goes. The surface area is some 13 times that of a solid #15 gauge copper wire. A minimum of 10 times the surfac...
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I just found this thread and can comment on the Enabled DX4s. Limono (Wojtek) very gratiously loaned his Enabled 8 ohm Lowther DX4 drivers to me this past summer (summer of 2008). It took my a while to make the crossover for these (I have...
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[quote user="Bud"]Check out what this musician has to say about the problem.
http://www.performancerecordings.com/capturing-music.html [/quote]
… unfortunately this article has some, from my point of view, “issuers”. The author advocates needs to b...
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Romy,
I actually prefer the essence from the other end of summer, that wet, clear water running sound, so exuberant and hopeful ... though autumnal music has its own joys.. you only need encounter Vivaldi's Four seasons portrayed by N. Marrine...
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[quote user="Bud"]Just so you know about these folks. go to this site and page down for a bit till you find the horn installation topic. http://www.royaldevice.com/custom3.htm [/quote]Yes, the Royal Device’s horn is well know horn. Sure the enth...
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Bud, the replacement diaphragms are available all time. On Ebay and everywhere else they are being sold by Bob Crites. He holds the original manufacturing rig and he can do them in unlimited quandaries. I own the original diaphragms but I do not use ...
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Jessie wrote :"...In the case of the system I am building, one can happily sit straight in the firing axis of any of the horns without experiencing the above-mentioned unpleasantries... No cringing (and this while using the older metal diaphragms). T...
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Bud,Thanks for pitching the A45a and FR4.5, I never dealt with both of them and will consider them, though it is slightly disconcerting that all those drivers meant to be wide bandwidth and therefore have too much HF in them. Still, my initial candid...
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Romy does explain things correctly, in his own way of course.Modern electrical field theory has it that the electrical field attached to a cable, stops progressing along the cable for every vector change in the field. Not exactly a digital event but ...
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Paul,Actually they do not sound different. As shown in everyone's tests, those objective measures of performance do not change more than you might expect two different drivers of the same type, manufacturer and production run to sound. What changes a...
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