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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Checking if you playback can discriminate absolute polarity is very simple and very effective way to find out if you acoustic system is not fundamentally faulty. Flip the polarity and monitor the result. If you did not experience dramatic changes at ...
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That was very interesting post, here are some thoughts of my about it.
[quote user="KOTriode"]Romy, No, the DAC was not set at maximum level (for best sound) while Cyrille listening to the system. It was set at normal volume for the whole sys...
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Ygoh, Most of compression drivers have phase plug. A phase plug is very genomic center line oriented devise. A phase plug must be parallel to diaphragms and perpendicular to the axis of the driver. Practically all compression drivers have beggin...
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I have just installed my whole speaker system at a friends house, 5 way horn loaded, it was getting in my way for some tests I wanted to run (Tapped Horns, exponential 180 hz horn) I already like it better! Change is good.Koshka will love to have m...
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[quote user="Romy the Cat"]
Yes. I’m exiting to see how the new horn I shaping up. Still I do not think that it is about second orders. Obviously in context of 5 channels system, the more channels one gets then less room between them. I still feel...
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Steve Schell and I are currently using Le Cleach horns in our system, The more I listen to them, the more I like them. They sound slightly less directional and beamy than a tractrix, and overall an extremely pleasant sound. W...
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I tried the V-caps in my system and it changed the sound. This is not a big surprise. Any time you change caps, even to the same cap, it is not broken in and you have been soldering and tinkering with your system, and it needs time to set...
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[quote user="drdna"]From my own experience, every change that has stayed permanently in my system, at first seems soft and sort of boring. I am inside always a little disappointed when I first hear these changes, because they seems so neutral and une...
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I defy anyone to "hear" the relays in my TVC/attenuator. In any case, who wants to get up to change volume, or balance, or phase, or to mute the system? Does anyone remember that Lamm started out by offering VR meters on his amp, but he deleted them ...
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I had some experience with bad electricity so i would like to share it here. My audio system does not have ground loop. 1- digital sources (I have CD Player) is more sensitive to Bad Electricity than Pre/Powers. 2- if your audio system Continuously p...
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Dear Romy,Almost every audiophile I've seen think audio gear are like refrigerators, washing machine or any home appliance. You should justplug and play. At best they change interconnect or speaker cables and by A/B testing try to find out which soun...
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Romy, after reading my previous post I realize I would have to express myself more clearly, sorry for the misunderstanding! This hobby is an important part of my life, I have specific opinions and am probably not less serious about them than you are....
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[quote user="Romy the Cat"]I, looking at my “7 reasons” do have a preference to sealed boxes. I do not believe in accuracy of bass horns, particularly in context of system integration.[/quote]What made you change your mind?...
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All below is written by Thomas Dunker
Yeah, "sound consistent independent of signal level" is a very precise way to sum up my whole speaker philosophy. Anything that is assumed to be constant, but which actually changes with signal dynamics is what ...
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Could it be that the sound is somehow equalised and compressed by Youtube?There's an obvious sound change at min. 3:30 but it should be more pronounced.I think it would make more sense if we were to upload a 16/44 of our system playing the same recor...
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Amir, what you have written is not a philosophy, it is not a path that guides decisions, not a document what gives others insight into what music does to you and why. I have been following your posting, and to be honest, it sounds more like an audio...
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I don't suppose I get this, either.Why would you ever on the conceptual level opt to NOT have "Full Range" and a "flat frequency response" that covers the whole audible spectrum?Sure, this is easier said (or thought of) than done, it's "complicated",...
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Romy, just change your speakers:http://www.dc10audio.com/#!gottenburg-odin/cfgI'm joking but are you willing to duplicate your existing system in a new home? Those midbass horns?...
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[quote user="guy sergeant"]The load lines are horrible. I can't imagine it gives a very accurate representation of what is fed into it. Maybe that's not what you are after.[/quote]It is not that I completely agree (or completely understand) the Eduar...
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1.- Finding specific solutions to specific problems[quote user="drdna"] .... I have high-sensitivity horn loudspeakers and use some 2A3 SET amplifiers, which make very good sounds but I am looking to get closer to the Sound, which to me is feeli...
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[quote user="drdna"]Experimenting with the new 2A3 tubes has been a very interesting experience. It has given me insight into more specifically exactly what I am looking for in the stereo sounds, which I associate with the Sound.
The most we can as...
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The Vienna Philharmonic sees itself as having inherited a body of instrument types which at the end of the 18th century reflected the prevailing intellectual spirit and value system, not only of central Europe, but to a certain extent of the entire c...
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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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Similar to the famous sexist tail that women can be only ether pretty or smart the midbass horns unfortunately behave in the very same way: they can be only nicely placed in a room or they can sound good. You want the horn to place in a specific ...
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The iDAT-44+ just got back from a visit with its dad, John Wright, to repair an intermittant fault and to work his current round of "upgrades" to the sound. Also, over the course of re-integrating the fixed and improved iDAT, I re-thought the way I ...
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[quote user="JOHNR"]One of the things that I picked up in this thread is the fact that if you use 2 PSUs in series, the sound degrades.This is typical of one unit generating common mode noise and this adds to that produced by the second unit.Even if ...
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I propose a very simple but extremely effective method of audio evaluation of you and your playback
Take any devise that has a digital volume control. If might be a CD player, DAC, Sound Card, Preamp or a power amp. Connected it to your system and s...
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[quote user="haralanov"] Yes, you are right. Power – you have almost unlimited power. Dynamics – you have as much dynamics as you want. But there are a lot of associated problems with that kind of dynamics. The following illustration is taken by ...
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[quote user="JOHNR"]One of the things that I picked up in this thread is the fact that if you use 2 PSUs in series, the sound degrades.This is typical of one unit generating common mode noise and this adds to that produced by the second unit.Even if ...
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After years of using the Expressive Technologies SU-1 and SU-2 step up transformers I come across to a fact this morning that the Expressive was reviewed by Robert Harley in June, 1992. I read the Expressive’s preamp review but I never seen this one....
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