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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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It look like the project progress well. I have a little concern
about heat the will be building up in your PS enclosure. I do not know what
kind ventilation hole you have in there but be advised that it will be quite
hot. In worst case you mig...
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[quote user="oxric"] Firstly, the costs involved and the real chance that this project might not work make this project statistically a horrible waste of money, time and resources which could be better spent in pursuing other solutions which are ...
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[quote
user="martinshorn"]It was nice to talk to the Son and engineer
providing proud all details with glow in the eyes, instead of rejecting like
other companies "this is proprietary secret". You can really see they
love what theyre doing [/quo...
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I am going to show two different simulations for a 105Hz
tractrix horn with the same 8”driver (B&C 8PE21). The parameter values for these two
simulations are quite different. However
the simulations predict the same great flat fre...
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[quote
user="ArmAlex"] Hi Romy, In this picture it looks that attic
opening's distance to listening position is very close to distance of chair to
the main speakers. Time alignment?[/quote]ArmAlex, very good question.
The position of the exit of ...
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[quote user="tuyen"]This is my current 4-way GOTO setup. I know it is in no way optimal but I am interested to find ways I can improve it's layout.
GOTO SG-38WN woofer in 360L onken cabinetGOTO SG-505TT mid-low driver with Azurahorn AH-160 ho...
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[quote user="Romy the Cat"]I will slowly upload, as time permits to write them, different posts on the subject of Ultimate MF Compression Driver. [/quote]
The subject of bandwidth for Ultimate MF Compression Driver is complicated subject. If ...
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This time from Germany and this time the pattern is very much the similar to the patterns of any other company that sell electromagnet fro Hi-Fi: the semi-idiotic statements-claims meant to impress uninformed peoples and no credible claims about ...
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[quote user="Romy the Cat"]I have a few comments and questions. First about the posting. I guess you are from Italy and your use some kind of text editors that user a lot styles that are not renders properly a browser with western meetings. I just wo...
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A few things I would like to say in context of Pham’s playback.
I will leave his infatuation with turntables alone – man like to collect turntables and he within his constitutional right to do whatever makes him happy. The problem that I see ...
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Thankfully, JMLC chose to use english as the common language for he event, not altogether surprising given the many nationalities that probably attended.JMLC writes:
"N°13 : Stereolab tractrix horn + Vitavox S2 driver
...
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Part 2 – Description and explanation
Anyone who have ears and a rudimental mind to understand what ears register, and anyone among them who played with MF channels driven by SET, know that subject of SET loading is imperative.
Let take for...
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I need to say that I miss my Macondo sound, not the sound
itself but an ability to push a button and have predictably good sound. However,
from the place where I'm staying now, I feel that to have just Macondo result
is not enough for me. I would ...
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[quote
user="Murataltuev"]Yes, back chamber is very small. And it is
tunable! So, I need 110Hz Tractrix...ok[/quote]
You might tune the Fs by using a acoustically semitransparent
fabric, like Audiotechnica does in their headphones. About the si...
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[quote user="Romy the Cat"] Well, I have to admit that I did not listen the whole sound of AC vs. DC filaments yet. I will bring home today my DC lab supply that I use for my electromagnet coil and will give the try. I still at this point am not...
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[quote user="Romy the Cat"]I have to admit that I have written a few pieces of writing about my experiences with YO186 but I withhold to post it as I do not know if it might valuable for anybody. It looks like no one use YO186 on West. There are ...
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Once again, it is not about the loudspeakers but about the idiots who put themselves in position of shaping public opinion by expressing the “expert” view. Yes, I am taking about the Morons who write those audio reviews. A new Danish 90db sensi...
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OK, now I am happier as I did my duty and the back chambers are ready to be attached to the horns and to be lifted up. Yesterday I spent 5 hours trying to build the back chamber displacement that Jessie and my carpenter recommended me. I bought t...
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[quote user="Romy the Cat"]
"...Jessie, I pulled posts from Macondo Axioms thread and encapsulated them onto a new thread dedicated explicitly to your project. I hope you do not mind..."No problem... I was actually starting to feel a bit apprehensi...
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OK, this morning I tuned the playback and did some listing, trying to understand what was the problem. Sound was not just bad but it was very strange, it was almost as a mechanical replica of sound. I took my phase meter trying to set horns in ph...
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[quote user="Romy the Cat"] Still, I did not mention the most important thing about my new midbass horn. This most important and the most astonishing new characteristic of Sound I did not pursue and I got it purely accidently. I did not talk ab...
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[quote user="noviygera"]1. Let's say
the my original back chamber from the manufacturer is a good "starting
point". Is Romy saying that those last few hertz of the fine tuning of the
chamber volume are very important and audible, in other words th...
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Hi Romy,
Again, good words (don't want to kiss your ass ;) ). Though, I get your point and agree, one should not think that this winter picture means Goto sound cold (u never know what one could read out of it) .
What Klaus also highlighted, is...
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[quote user="Romy the Cat"]I do not understand what does it mean. Are you saying
that you lost bottom response with closed exit hole on the driver back? If with
the closed drift from back you have a (loaded!) response no lower than 200Hz then it i...
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I was thinking about what I previously wrote while driving today... thinking about the way people "see" the function of a driver... and about resonant properties of various materials used for speaker cones... I think it is more interesting than compa...
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quote:1:Deciding for horns is actually very easy. Why:1)
in the common sense range for each horn/driver they have far LESS
distortion than any standard dynamic driver covering the same bandwidth.
I define distortion as frequencies not originall...
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There is a family of sonic weapons:
http://defense-update.com/products/l/LRAD.htm
http://www.lradx.com/site/content/view/2016/110/
I wonder what kind principle they use to keep sound radiated at narrow angle at high d...
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I would agree that the Lowther is not hard to beat but the question is where and in whose mind does this competition exist? Is the Lowther, Manger, or other full range single driver in competition with different multi-driver approaches, other single ...
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Another particle of a good Horn Propaganda. It was published in Sound Practices in 1994 and written by Joe Roberts. I disagree with quite many of the author’s statements but his strategic view that the majority of the horns and the horn installations...
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[quote user="Romy the Cat"]The events of the last 3 days are incredibly stupid, incredibly interesting and very educational. During the last few days I have discovered some very interesting phenomena, ok might be no a phenomena but a behavior, th...
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