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Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Steve Leung, VAS Audio, saved my Ortofon MC3000II
cartridge after SoundSmith told me it was trash. Further, the cartridge tracks
better than ever now, and transients are better than ever now. Particulars are:
My right channel went dead “out of now...
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I must have been otherwise pre-occupied when I first watched and listened to this video, because it surely warrants a positive response. I am very impressed, not just by the guy's technical knowledge and skills, but also by his practical implementati...
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Can’t remember when I first noticed the right channel was
quiet when I used phono as my source, but it was some time before I rigorously
traced the fault back to the cartridge, itself, and it was another age before I
asked Ortofon about anothe...
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What’s with audiophiles and their fancy, expensive
capacitors, anyway? You might think I have an answer to that question, since I
recently (a couple of months ago) swapped fancy new V-Caps into the output
positions in my K&K phono stage.
...
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Alex, whatever the standards and/or expectations are for steel plate for ship yards, customers for electrical connectors don't want them to start out corroded, starting at the wholesale/distributor level. So, manufacturers don't want an inventory of ...
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The thing is, none of these parts are "homemade" (or, VERY few of them are...), rather they are made by people/companies who are all about "manufacturing". It's said that copper just doesn't lend itself to machining or bending (manufacturing), and it...
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I like to "build things in my mind", then try to see if I can find them ready made. If I can't, I either rationalize a compromise or build it myself. I like to think I would dump fixed notions fast in cases where solid evidence refutes me. Ockham's R...
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I've read that high-purity silver does not corrode, and so far none of my Eichmann or WBT silver RCA connectors have corroded, years and years down the road. However, they have gotten pretty darn expensive! The WBT are well made, at least, and I woul...
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Do read this thread carefully, especially Bud's posts, if you want to use anything herein as a basis or as bases for your own cables. Your remarks about the cotton sleeve, for example, seem to indicate you'd not read this when you listed your putativ...
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In this cable thread there are some ideas about materials and construction of cables. My most recent attempt for good-sounding shielded phono cables are from Bud Purvine, using his specialty Litz wire construction, Vampire 800C connectors, and unblea...
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Alex, I have never made anything hi-fi for fun, but only if I thought I could do as well or better than anything suitable that I could find and also afford. I think I've detailed constructions I've used in the Cable thread, which is where this stuff ...
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Robin, your point is well taken, but I don't think they are trying to circumvent the laws of physics here. I did not read it yet, but Alexandre did provide a link that gets one in the vicinity of an explanation:https://www.ds-audio-w.biz/wp-content/u...
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Some version of this idea has been around for many years, never seems to get off the ground. Got to say, given the process from recording, through mastering, LP manufacturing, and playback, it's a wonder we can even recognize the original performance...
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Bill, if anyone did more for these people than Romy, it has to be you, which makes this not only unconscionable but simply bad business, on the face of it. Perhaps seeing these posts will shake a unit loose for you, and you might then send it to Unit...
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Alex, I "invented" and built my own power cables from scratch, using sleeved, solid, 12AWG Cu magnet wire, as I explained to Jarek, way up this thread. If buying pre-fab cables, I would first consider Speltz. As for "oiling" the wire, I don't know ab...
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"Best bass" is of course a matter of opinion based on experience and expectations. The (original) Hartsfield LF driver is certainly "designed for horn loading", like the Vitavox AK-151, whereas the AK-150 and the JBL D-130 are designed to be direct r...
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True enough, Robin. I count on being able to "find my way back" when I make changes to my system in order to "listen differently" to more or less familiar pieces, what I like to call "mining" the Music. For me, when listening to LPs, this begins with...
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Hi, Tomand
Anything BiDAT would likely be known by, also the express purview of, John Wright, in Canada. He is friendly and accommodating, but this is his livelihood, after all. Why do you need the schematic so badly?Best regards,Pau...
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Sorry, Alex, I guess I was not paying attention. If Romy or Thorsten see your post, they can help, for sure, and a few others here also use that model. I know little about this phono stage.Best regards,Paul S...
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Hl, Alex. You might get more responses at the DIY Audio site. Sure, the general "rule" is more/lower LF with a bigger output cap - to a point. But what is the make/model/function of the component in question, and what does the circuit look like?Best...
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Maybe Bourns for inexpensive pots? I think DAC (Danish Audio Connect) are more $$$.
Edgar, if you are recording, maybe you are looking for one of the Steve Hoffman boards? This site is more hi-fi, and DIY here is typica...
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Looking around for something else, just noticed I had not updated the MA-9S2 thread to say the single amp has been sold. Still have the pair, still plan to keep them....
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Hi, Flm. Welcome. Try reading some long threads in our archives and you will get a better idea how to open a dialog. Pretty sure there are some Lowther threads, but no reason to limit yourself to those. "Accurate" in the case of speakers means faithf...
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There is so much material worth reading here that it would be hard to list it, and not all the important material is where one might presuppose to find it. Romy hinted at this when he suggested, broadly, that you take a "wholistic" approach. There is...
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Welcome. Things have been quiet around here since Romy got preoccupied with his family, but don't let that stop you from doing a lot of reading. If you are a persistent reader who takes notes you can save lots of time and money vs. trial and error bu...
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Good for you, Jarek! As for the very specialized (and not always needed...) "bleeder" ground, it has been my experience that it has worked best when it is a "stand alone" copper rod driven at some distance from the service ground. I run a 12 AWG magn...
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N-Set, I believe Romy posted scope traces of his PP output in this thread, many years ago. As I recall, it was a "pulsed sine wave". Nobody has said the PP is quiet; quite the opposite. As for battery power, I finally got to "A/B" a large, well thoug...
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Again, there is no need, even for "safety", to have a separate ground wire if everything is star grounded. Since the neutral and the safety ground connect at the service bus, running the "safety ground" back to that bus for your phono stage apparentl...
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I'm trying to remember if you have copper water pipes, and wondering again how these measure for ground resistance. You MIGHT be able to ground your phono stage case to a water pipe as a "bleeder". You could start by "jumping" it, then do something m...
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From your descriptions, it sounds like your phono safety ground makes a ground loop, or at least raise resistance for something, when you connect it to your PP. Are any of your ICs connected to ground at any point? The ICs "should" connect your compo...
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