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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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I do not know which core and wire materials I shell need, I need to consult with my transformer people for that. As the starting point I plan to use that:
http://www.sowter.co.uk/acatalog/EQ_INDUCTORS.html
It might be good as is of I might order so...
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Since adding the one-staging 3 channels have triggered the replacement of all magnetiks in the Super Milq’s power supplies:
http://www.GoodSoundClub.com/TreeItem.aspx?PostID=3694
http://www.GoodSoundClub.com/TreeItem.aspx?PostID=4708
I was...
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Great project! I have a similar project going on. Your frame ideas are looking beautiful, however I decided to take a more utilitarian road. I can adjust all my channels in horizontal or vertical axis. I am finishing my crossovers as of these days, a...
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Another “interesting” thing... Any amplifier that I know is absolutely disabled to let me as a listener to extract from music something without unavoidable loosing a perspective to the whole musical peace. The Melquiades swallows this task with ...
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What the great thing the new WGBH 99.5FM All-Classical turned into! The new station is become my truly live supply. I have managed with acrobatics of my tuners, filters and antennas to get a more or less acceptable reception. The sound quality is...
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After learning about the Schwarz’s circuit Dima declared that it will be very simple to build into the unit a good quietly multiplex decoder as the plug in modules as a substitute to the original modules. This will change nothing in the Schwarz but t...
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The AA Moron in response to my criticism give a birth something interpretable. Here are the sweeps from Upperbass Horns and MF horn. I have no knowledge if the Moron removed the filters or the EQ circuits that might be used, wich sweeps he used...
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Today I was reading Jim Hagerman's interview about his Trumpet phonostage and learn that he uses LCLCRCRC filters for B+ in his design. I certainly do not question Jim’s decision; in fact I never heard this phonostage, but I would like to comment, co...
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[quote user="alexd"] The issue of properly handling FM signal is related to the capabilities of your A/D converters. Your A/D converters have analog and digital anti-aliasing filters and delta-sigma modulated A/D chips. [/quote]
Actually if I am not...
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[quote user="Romy the Cat"]Yep, Telstar. The 1547 was use in Sony and Teac CD players and believe the first CD-SACD machines used that chip. I know very little about those chips and have none of my personal experience to deal with all of it. The reas...
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Dear Romy,
A. Recordings of different quality are worthwhile. Let's take three examples:
1) A stereo recording that you feel is as good as it gets.2) A mono recording of a beautiful piece of music that is well played.3) A stereo re...
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Here is a snippet from an email from Jonathan Carr (Lyra cartridge designer) about objectives and considerations regarding cartridge loading. Most of this is old news, I only re-post it here as a convenient synopsis on this most misunderstood t...
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[quote user="hagtech"] Musta been a teenage thing. I never got around to experimentation with my own chemical formulas. [/quote]
Nope, it is nothing to do with teenage thing but rather a cultural thing. In Russia any more or less civiliz...
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[quote user="Romy the Cat"]
Perrew,I do not know if you use sarcasm in there but Lamm LP2 is not my bellowed phonostage. In fact I am one of the very few people whop do not like it at all. How much in what I do not like in Lamm LP2’s MM section com...
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Cat, if you
at least for a moment override your ego, you will eventually start to see some
things that are beyond the curtains (of your own ego). I don’t care if you
treat your horns as mechanical filters or not, because it is completely irrelevan...
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[quote user="Romy the Cat"]The subject of midbass nasal sound is very interesting. In addition to all OTHER aspects that might lead to midbass honk I would like to note that there is one that is in my view greatly overlooked – the precision of re...
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I have a problem with how you are using the english language, Romy. You are using an absolute word (like absolute) to mean something you have invented and it is a relative thing. This for me won't do. I understand more or less what ...
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It is nothing to do with Wisdom. It is my principle of application of “cost” as a common sense design tool. I do not bitch that Duelund caps are expensive. I just try to find a rational solution for using them that would embrace their price. My ...
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[quote user="anthony"]Thanks for your
thoughts Romy. Last night I roughly wired in some random crossovers….[/quote]I
wrote a loooong replay to you after that post but my 2.5 yo son turned off my computer
while I was posting it. Hate to rewrit...
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Interesting concept but let me point out a few considerations.The diffusor does performs a mild "equalization" function if you want to call it that but it is also an aid to dispersion. It is light "EQ"...3dB might be about right. Without any diffusor...
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Since having replaced the 16 Ohm drivers in my upper-bass horns with 8 Ohm versions of the same driver, I gained enough upper-bass output that it is now possible to run all horns from the 8 Ohm taps (I was previously running upper-bass from the 16 Oh...
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I pretty much know what I need to do – I need to go for shaper filter built in my power amp. The second order I have no is too impactful to midbass, so I need to do for 2th order or perhaps for 4th and try to integrate it. Whatever it will be I thin...
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[quote user="jzagaja"]To make the story short Autotech is a family business located in Lublin, Poland. Younger brothers graduated in mechanical engineering are cars and racing lovers - with scores in Europe as professional drivers and mechanics. One...
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A few months back a audio guy visited me and after a listening session I asked him if he can report any problems with sound. He reported that he hears a slightly more prolonging decay at upper bass then what he suspect to be. I knew about this effect...
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[quote user="twogoodears"]Yes, maybe the 120 db/octave is THE trick for complex multi-ways systems of highest resolution, yet this barbaric:-) slope can ONLY be achieved by digital domain crossovering... unfortunately, as a satisfied user of TacT RCS...
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[quote user="Dominic"]I'd put your sub horns above your head. There are some big issues with that but you save a lot on concrete engineering, and assuming space remains in future you could apply what you learned from the overhead wood horns to a more...
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Romy wrote : "If someone discover a 4-5” driver that can have the same Syrupy Sound as the Red 10” then please let me know" I will be trying some older alnico drivers in the Mid-Bass horns (the first pair should arrive in about 2 weeks time). I have ...
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[quote user="Macman"]Just realised that I had dual highpass filters on the TH, which more or less cut off frequencies below 50Hz entirely. A lot better now, still much to be made of course.[/quote]
This is very normal. People get the “building...
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I do not know it is just Triamp or 3-chenal DSET by the direction is good. The amp was mentioned by Twogoodears on his blog.
http://twogoodears.blogspot.com/2010/03/triamp-tm-by-thomas-mayer.html
I do not know what he mention abou...
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[quote user="drdna"]The question in my mind Romy is: why? I will be interested to hear your comment on what your goal was to learn about your system in introducing these and what the results are. After the extent to which you have describ...
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