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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="noviygera"]Number one, that I'd like to run by you guys due to it's simpler nature and closer to reality execution is the idea I have been thinking about. No first hand experience with any of this.Say we use something like altec 1505b mu...
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This is my first horn build effort. Been thinking about this since starting to build loudspeakers and finally have a listening space big enough to support a horn system. This is where I am at now, I know there are opportunities for improvement. And I...
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Actually it is very possible that it might be so. I made some rudimental measurements and concluded that RAAL tweeter and JBL midrange mounted in the same baffle has non-perfect time aliment. So, I will need to use gaskets under the drivers to time-a...
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But aren't the vented ports out of phase with the horns? Or is there some way to mechanically cross them over with time alignment? Or maybe it just doesn't matter at those frequencies.jh...
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My comments are rather discouraging arn't they! Not my intention but hopefully helpful in the long run. Regarding time alignment i just wanted to raise the point i think it might be more relevant than initially anticipated by someone considering buil...
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This was taken from a crazy article by a mad brazilian, an original Hi Fi News (March'80) drawing of Britain's largest cinema horn (~5,20m2 mouth).Could such a design solve your time-alignment problem?Cheers,Ric...
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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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Now I have been listening the different crossovers trying to shape the new Macondo general balance. This is so fascinating ceremony that I do have a lot of fan. The things doing alone very well. I boosted upper bass and it worked now very-very well....
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Roman:
since I came to GSC, I became more and more careful (at least trying) in proper choosing words, due to the need of expressing myself in a language which isn't my own, some finesse and subtleties get lost, so further explanation or underl...
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tarted to mount the open baffle for ULF channels at my
attic. The system is fully operational,
not time aligned yet to the degree that I would like it to be but I'm going to
tell you: that Tannoy Red 10 is something that makes everything so sweet...
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Well, yes... I've not been to prison in over two years! Apart from keeping me off the streets at night, the results when listening to one of the 40Hz horns were, dare I say, encouraging, though I do hesitate to say so, as the "evaluation" was carried...
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Number one, that I'd like to run by you guys due to it's simpler nature and closer to reality execution is the idea I have been thinking about. No first hand experience with any of this.Say we use something like altec 1505b multicellular horn that sh...
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http://hifiknights.com/reviews/speakers/rdacoustic-evolution/I think that David should search here about full range speakers. As he obviously can't hear the difference, maybe reading about it will help improve his designs.David, just for your informa...
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Great analyses, David, thanks. I can’t concur as now with anything. Macondo in the room with midbass horn was a complex installation and with ULF it became even more complex. Some of the things I setup by ear and do not use measurements, I just know ...
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[quote user="Jeffrey Jackson"] Also, I had never dreamed of a driver with a variable compliance resulting in a variable free air resonance... such a toy would be wonderful with custom midbass and bass horns... [/quote]
It is why I use cone drivers f...
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Hi Romy,1) What dimensions for 1808 baffle would you suggest? 2) Is floor-firing vs. front-facing cone useful or preferred?I believe you wrote LF channels should be placed in arc outside midbass channels. 3) Any *general tips...
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My own limited experience with ULF has been that it hasn't been "directional" at all, and hard to say if "time alignment" is even a factor in most cases, apart from the inevitable delays caused by X/Os. Also, where the speakers wound up has been bas...
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I spent today good 5 hours listening my new playback. For somebody who do not know me it would look idiotic to listen the playback with such a huge amount of problems and do not make any efforts to correct them. Defiantly the problems are huge: the m...
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[quote user="anthony"]I seem to
remember you had this sort of issue when setting up your previous room and
eventually you moved them time aligned.
The one stack of 15" and 10" sounds
like a nice solution. Do you think more 10" scanspeak instead ...
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[quote user="Kerry Brown"] When Bruce realized a straight axis horn was a better choice he went with it. Like a good scientist. [/quote]
Ah, did Bruce realize it of he decided to make his customers to Bruce realize it?
[quote user="Kerry Brown"] Th...
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Romy wrote:"Do not listen
Romy, make you own very simple experiment and then make your own mind.
Take two horn channels, low-pass and high-pas them at 6K for instance
and drive them with 6K sinewave. When you time alight the driver you
have well ...
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I has been announced that Dave Wilson has dies on May 25.
From Jason Serinus‘ article:
https://www.stereophile.com/content/au-revoir-dave-wilson-1944%C2%962018
Discussing his
ultimate statement, he [David] said, "The placement of the dri...
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[quote user="drdna"]
Romy the Cat wrote: My attitude with my main TU-X1 is “do not harm” as I pretty much have no complains of frustration to it’s sound and I would be pity to loose what I have now from this tuner. I have some people tol...
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I got an email from a site visitor informing me that there us a set of cheap ALE drivers at London Craigslist: http://london.craigslist.co.uk/eld/4435844980.html(copy locally to have it available after the Craigslist posting will be gone) "ALE Acoust...
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Hi Roman et al!Allow me to introduce myself. I have followed with amusement Romy the Cat for many years. He is ascerbic and ultracritical, but he does know audio. We share many tastes, like the Koetsu Onyx Platinum foir instance, on...
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A German company Avatar Acoustics makes loudspeakers with adjustable positioning of their ribbon-tweeter. This is very much with the context of this thread although I’m questioning a lot of things in those loudspeakers (pretty much everything beside ...
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Bruce Edgar, the founder and designer of California-based EdgarHorn Loudspeakers, recently announced that he discovered a new relationship between his business plan and rules of physics. According to Bruce: “The physics of sound reproduction th...
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Hello again, Romy.. let me see if I can clear some of this up....
first, you are indeed correct on your horn thoughts.. but some clarification is in order...
Ming Su is the importer of GOTO to the USA... Goto Japan only ships horns from flar...
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I've had a long-time desire to replace my Edgar 80hz midbass shells with a better performing solution. My Edgarhorns arrived in 2005, and I made incremental improvements over the years until now they have little in common with the original Edgarhorn...
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I was thinking about it in past. I do not particularly believe too much in point source. We have no vertical resolution by our hearing and if drivers located strictly in a vertical line then in longitude domain they are single point source. Of course...
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