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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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In his latest YouTube,Romy mentioned using my prepro to time align my drivers.I use the Trinnov Altitude 16 prepro which has a total of 20 channels. 16 of the channels have balanced analog outputs and the othe four Channels use the rca and optical sp...
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Righto then, I guess there is no reason not to try this, except that one of the original crossovers here is non-functioning (if I remember correctly), so if trialling in stereo I'll have to crossover in Melquiades. Should have the parts here to do t...
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The ideal horn system would have to be well integrated into the room, acoustically as well as optically/cosmetically. As far as a commercial venture goes, I believe that Marc Henrys "La Grand Castine" was already (except for the ULF dipole panel) ver...
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I think we are all agreed that if time alignment and space were not issues, a bass horn would be the way to go.Now, I'm fairly convinced that the overwhelming benefit of horns in this range is the phase response, ie flat group delay vs frequency. Mos...
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Well, it looks I’m near finding a more or less acceptable setting for the T350 tweeter. Ironically and completely accidentally it is not far form I use to be. It is still on the slope at 20Hz (since the T350 is pretty dead at 16kHz) but now it is &nb...
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Stephano Two good ears has put a post on his site about his new 4 way passive xover.I think this is a better direction than the digital xo. The designer, Thomas, designed also the preamp and I guess he has taken into consideration the input and ...
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[quote user="drdna"]I was really shocked when I saw this idea of yours. It is a trade off of course with improved control over narrower frequncy bands being traded for axial symmetry. Yet because the position of the drivers is so very imp...
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Hello again, Romy...
I totally agree with you about changing the rear chamber volume. It makes a very positive improvement in extension as well as quality. Also, I had never dreamed of a driver with a variable compliance resulting in a variable...
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I sincerely feel that all those conversations about space
and the rest of the Audio G-spot words are irrelevant until people who engage
in conversation are exposed to a properly implemented Auro 3d or any other objects-oriented
Space reconstructio...
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A friend of my after reading my comments about the EdgarHorn installation in Vegas (in here) asked me why do I think the bass in Bruce’s room behave as it behaved. I tried to think about it. Some of those thoughts intersect with some other projects t...
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Will try to answer all questions here.Romy: I understand why you do not wish to use the term “surround sound”, but it is the accepted term for what we are discussing. You may add other terminology, but it only muddies the debate until others accept i...
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[quote user="Romy the Cat"]
Well, acg, I am not wild about your idea of the curved frame,
primary on the reason of esthetics but it is your speaker not mine and you
shall do whatever pleases you. A few mandatory things that I would like to
men...
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[quote user="mats"]I wonder if an exponential horn would raise the bottom slightly? [/quote]Yes, a move from tratrix (or La profile) to exponential profile will yield some raise the bottom, however it come with prolonging of the horn and in some case...
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[quote user="martinshorn"]So thinking stereophile was there thursday... [/quote]Reichert mentions Saturday twice in the article. Not that is really matters. He did not like them, the youtube video sounds horrible but you heard something interesting...
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[quote user="jeff1225"]I never understood the affinity that the Germans have for heavy metal. Whenever you going into any of their rooms at CES (especially MBL), Slayer is playing at 130 DB. Maybe it's the modern interpretation of Wagner.[/quote] Jef...
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The visual element of the brief shoyld be able to be achieved by doing thing nicely, thought out and with good materials.I am aware of the no parallel walls and this may well be utilised into the design. A simple stud wall, set inside the perimeter w...
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I don't have RF sweep generator but it's fairly easy to source here. I will take the tuner to local FM tuner tech to re-check alignment and we'll take it from there in a couple of weeks. I will have to read more about RF circuits trough this tim...
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Post #57:
IB
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by
Jorge
on
2016-03-02
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Sounds Very interesting, If you can change the loose insulation in there for Cellulose, it is supposedly much better sound wise than fiberglass. It would also help to avoid leakage of bass to other parts of the house through the attic, if that is p...
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Gee, now that I read my post again after yours.... that last bit didn't quite say what I was wanting to say (I hate when that happens). I was really referring to people being "brand specific" as my example of the 45 showed that you can't always...
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i see the words time alignment quiet often in this forum :)Which is a good thing. But can you show a graph / measure that says what it means in a result?Or do you just mean the woofer is standing next to the mains?Cheers Josh ...
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Tweeters Alignment - what is a bitchy subject! I was mildly complaining about it for years and during the last few weeks I complain about my own tweeters - primary because the very same issues of the imperfect alignment. This there is a derivation of...
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I have been doing some work with integration of tapped horns. I have discovered some interesting things that are not being discussed on any other forums. I’ll start at the beginning so a full picture will be clear. At first I placed the tapped ho...
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I guess you cannot say you listened to a horn system if you dont have an upper bass horn.The upper bass horn has to fill in the response from the compression driver down. At this delicate range nothing will perfectly macth it but another front horn. ...
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Ah, Texas, they are truly helpless people. They did not reach the level of humans evolution when such a fine things as bass time alignment would matter. They need to experience an influence of the Renaissance first.... Seriously, a nice looking list...
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I helped Romy shuffle around some hardware and connect some cables yesterday. That damned table weighs about 100.000 pounds. This was one of those once-in-a-lifetime opportunities to see live, in-person how Romy thinks about audio and incorporates th...
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They paid attention to time-alignment, good - but the tweeters location near a large reflective surface might be problematic.It looks like a 1kHz tractrix horn to me (maybe 800Hz). I have one though it's from Stereo Lab....
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Ok, none it is time to dive into the practical process of tweeters alignment. Once again I presume that we are taking about monopole tweeters that use AFTER your midranges compression drivers (read my previous post). Some people use term “supertweete...
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[quote user="haralanov"]Are there any signs for worsened transient response of your midbass channel due to the sharp electrical filtering?[/quote]Nothing that I note. The transient response of your midbass channel is a bit tricky thing as the way how...
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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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Andrew you got to read the site, get into it, there is a lot of useful information regarding excactly the project you are going into, is there any difference if the threads are addressed to you or someone else? Most of them are Romys own learning ex...
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