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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="Paul S"] So I'm wondering how things are going for the bold explorers who forked over their expectations for a whack at the PP2000. Have the things turned out to be Plug and Play along with All That, or is this yet another case whe...
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[quote user="Romy the Cat"]Sand damping it beautiful, it is well-recognized, but you do pay cost for it, in your case the cost is space. [/quote]I know that Romy… but without the massive amounts of sand, there are always some vibrations felt when I t...
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I was keep listening my Dutch-made SA8535 tweeter. There is a lot of deferent with this tweeter and I think it is a good time to pass my early observations about the tweeter Sound.
This driver is not a ribbon tweeter as the Stage Acompany frau...
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[quote user="ayebee"]I’m probably suggesting the obvious, but have you tried adjusting the crossover component values on the fundamentals and MF-channels? On the fundamentals-channel, increasing the inductor-value, and decreasing the cap, so that...
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A few year back a Russian audiologist A. Likhnitsky’s published a book “Sound Quality: New approach to testing of the home audio equipment”. (P&K, 1998) The book has many positive moments and altogether it was a wonderful attempt to bring i...
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Today, I decided to measure input voltages that induce clipping in my operational DSET. I basically just put in place the appropriate load resistor, set the signal generator at a level in the middle of the bandpass and increased voltage until the si...
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[quote user="hagtech"]First, it seems like the tubes are starved. They are running very low current. The 12AX7 is also at low voltage. I'm guessing they are running at about 0.3mA at 65V plate. This operating point is way down...
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I would like to pass some summarizing observations and some generalizations regarding the entire “Water Drop” project.
THE IDEA
The idea of trying to find a tweeter to compliment Macondo was a good idea. Many of you know that I was proudly declari...
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[quote user="scooter"]1. Please take a look around this site for some intelligence on how detrimental digital room correction is and why. Romy and Paul are being excessively polite today regarding DSP, perhaps because the weather is nice. I'll be mor...
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Audio and Music: four levels of unity and separation or… ...or a short and slightly dipped into Dostoevsky essay about Audio inevitability in case of …an Audio progress. K???? ? ??????? ?? ???????????? ?? ??? - ?????? ?? ???:O?? ?????? ??? ?????...
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[quote user="Romy the Cat"]
Anyhow, it is interesting how the new 25 users that get those Studio 8M will use them. I wish something “new” would derive from all of it…[/quote]Speaking only for myself, I am planning to use the Fane 8M in a pair of 11...
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In this thread I would like to talk a bit about the practice in DSET driven multi-way horns configuration.
I have expressed my view that the architectural configuration that Macondo and Super Melquiades end up to be I find is the most interest...
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In terms of the length of the horn, I'm allowing myself a total height of 7'6" (just below the average ceiling height of 8'). In regards to the mouth diameter, that's another matter. (It appears that I will have to build two [2] different...
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The really serious piano players I know either ignore it or buy a different piano. I have NEVER worked with a pianist that tried to make a piano something it currently wasn't. I think that when you are obcessed with your playing there are no syna...
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Hickok Model 600/600A/800/800A/533 Tube Tester Quick Reference Instructions by Daniel Schoo from Illinois.
AC LINE ADJUST: Push P7 and adjust the AC line control until the meter pointer is at the LINE mark at the center of the meter...
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[quote user="floobydust"] One of the reasons I no longer use a tube tester. They make a measurement at a specific target operating point(s). You don't really know what it is, so what are the chances they will be close to your actual circuit opera...
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Yep, it looks, like very close to “it” design-wise. http://www.studiomaudio.info/loftinwhite.htmlIn the way this amp is one of the manifestations of Loftin-White DC-coupled but it has some own things. The driver stage is the Melquiades Tube to k...
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[quote user="jessie.dazzle"] And Ok, maybe I don't have all the filters dialed in, and the DPOLS are like a dream to me now….[/quote]
And with 1600 pound per channel you might forget about the DPOLS … -:)
[quote user="jessie.dazzle"]Here is an RTA ...
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The system is still very much a work in progress, but I have come to the conclusion that the concept as such is very, very good. It's only up to me to make it sound as well as I know it is capable of. Making and fine-tuning the crossover might take m...
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[quote user="Paul S"]Likely, the wider ribbons are less good for HF-only than a long, narrow ribbon, like the G3 and G3Si use. Across the board, the larger the ribbon gets (and the lower the ribbon is made to go), the worse ...
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Actually I did have it is past. At that time I used a low-pass filer on my upperbass horn. It was 103dB sensitive driver of 16Ohm, highly inductive, and I needed somewhere hear 800Hz, speaker level, the first order. Being an extremist I got 3mH coil ...
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Most here are probably familiar with the fact that A/B "blind tests" were popular in the early days of "audio", where listeners seemingly could not distinguish between live sounds and electronic "counterparts" issuing from behind a curtain. Today we...
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[quote user="rowuk"]Maybe a lot of what Romy or Harlanov hear is determined by what they have conditioned themselves hear in a specific way? Maybe we are all victims of our own "conditioning" and need to address this first? What IS amazing to me is t...
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I never knew that it will be so much fun. As I started the basement cleanup project I did kind of remotely conceptualize that I will try to make a winter pipe smoking place. Instead I discover in my house a new listening room that I have to tell you ...
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Steverino, I spoke about it a few years back when I was just introduces to the idea of double-conversion class D regenerators. There are ton of them out there. I did tried two of them they were not good but it does not mean that other will not be goo...
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Hi,[quote user="Romy the Cat"] After some experiments and still being dissatisfied with the HF I ended up consulting with Dima. He spread me a theory according to which the HF was killed by my coupling Silver Mica cap. All my arguments that sil...
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Since yesterday I have received a number a number emails regarding the recent PurePower organization events. Some of them asked me why a post was removed from my site yesterday. The post was from the user “Jorge “and it was deleted by request of th...
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[quote user="Chirag"]Outside of the already constructed bass towers, is there a reason you are looking exclusively for 10" drivers? I have heard a pair of stacked 15" Lambda's on each side supplementing/providing bass to lower midbass under som...
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Chirag, First off all you have to define what do you want from them. If at this moment you’re looking for something within $700 then very next year, when you finish you medical school you will be searching in very different price range… :-) Now a lit...
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