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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Well, I have just taken receipt of my Orelo speakers (pic attached) - the bigger version of the Orelino speakers, with 3x 15" bass drivers per channel as opposed to 3x 12" drivers.I realize that Romy doesn't regard the coaxial BMS mid/high compressio...
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Hi rowuk.Shark skin decreases the formation of vortexes in fluid flows over surfaces and thereby reduces drag.Shark skin resembles fine sand paper and has actually been used as such.Of cource there is a difference between a stady flow around a shark ...
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I have not heard the Heils with all possible amps, but to my ears they are equally unequivocal with Tone and Dynamics, once their (rather low) "threshold" is reached. At least with respect to dynamics, this seems like the opposite of what one would ...
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[quote user="Romy the Cat"]Folding introduce a bunch
of resonating chambers and cost audio coloration in most of the cases that do MASK
OUT the transient dynamics but folding itself should not have an impact to dynamics
itself.[/quote]Might be the...
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Hm…m… I do not know how about that.
Well, the SG146XX
where the most interesting from one perspective and the most problematic from
another perspective. Goto, never gave to SG146 an option to moderate resonance
frequency and without it I feel i...
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No system ever resembles live music. imho. But you can get pretty close.Can you describe or share a pic of the horrid horns systems you have listened to?I also hate most badly designed "horn" systems too.Usually most "Horn" systems have a 15" woofe...
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I use a direct radiator monopole for below 650Hz, this is OK and I have it working well. I think that I want to control directivity so that I can stop floor/ceiling comb filtering which gives me problems of +/-6dB and more. Now I am using extra monop...
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[quote user="jessie.dazzle"]In the few converstaions I've had with him, Mike seems totally sincere and, as I've mentioned before, I very much hope he will one day come through.jd*[/quote]Well Jessie, it looks like your wish has come true. The Vitavox...
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[quote user="Romy the Cat"] The 6moon has posted an article about the Living Voice:
http://www.6moons.com/industryfeatures/livingvoice2/olympian.html
http://www.6moons.com/industryfeatures/livingvoice2/olympian_2.html
...
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I dont want to hack this thread into TH, I tried them with sub-amps 150 watts and they didnt sound good, but I was using a passive preamp, when I added an active preamp things started to get better, now with 12 watts and a a lot of gain, bass is ama...
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Mark,
It is hard to say. I owned T90A sometimes in 2001-2002. At that time I was going through the drivers like crazy and T90A was just one of them. Looking from now I do not think that I gave to many drivers a chance as I did not “work” them trying...
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"I would be no surprised that in the case of proper use the GOTO-type approach and Fane-type approach would perform identically properly"Both the Fane and the Goto where used as compression drivers, so there where no principal differences of use."Do ...
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[quote user="jessie.dazzle"]Romy, I'm very pleased to learn that you've got your Injection Channel done. I assume the above illustration is not indicative of the way you have the Tannoy Red aligned with regard to the other drivers, as it appears to b...
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Yes, it’s the drivers that inspired me to write up this thread. The response looks like it rises slightly atop but it is almost OK for this type of the drivers. Running the driver off the axis it is possible to roll off the HF rise. It is pretty much...
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Yesterday I was working for a half day at the part of the house were my Altec 19 are sitting and just to keep myself entertained I set up the Altec 19 to play from my add-hog playback: Sony $30 DVD player, Yamaha C2A preamplifier and Yamaha B-2 power...
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Translation:Rottbull seems to want T/S parameters for his RCF N850; I'm posting a link to a T/S database which has info on a lot of RCF drivers but not the N850 (it's a compression driver); nevertheless, it may be of some use to him and certainly...
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Years ago, when I visited the Cogent guys, Rich was working on one of their big drivers. The diaphragm was big and even thick and heavy, as compression driver diaphragms go. Of course they used 300B amps, and the bottom end had the "sewer pipe" type ...
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[quote user="anthony"]Regarding the other questions you asked, I am basically duplicating Romy's system as my starting point with horns.[/quote]Yes, as you can see my approach is also very similar.Two major differences: TH and Fundamental frequency r...
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Yes, Rakesh, thanks. I do not know if it is interesting. I look at this report and his findings and I do not know what it all means. It certainly gives a relevant perspective on different drivers but I do not think that it gives any quality perspecti...
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Ok, let kill the subject of Oleg Rullit out of this thread. Rullit has very little to do with horn and consequentially with compression drivers. Sine this thread is about MF compression driver I think there is no reason to pay attention what Rullit d...
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From the perspective of pumping of atmospheric pressure the ALE bass drivers might be more capable transducers. It or might not be so as well. To get 40Hz at 110dB in 5” it would take some excursion. I am sorry but you can’t bend the law o...
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Hello Romy and everyone, I am going to order a pair of 400Hz/1" tractrix horns from http://www.stereo-lab.de/tractrix.html to replace/compare with a pair of 500Hz TAD-like square mouth horns. These are to be used initially with the drivers that ...
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Bill Woods of the AH! Company:
http://www.acoustichorn.com
…. posted at his site a write up about the advantages of his conical horns:
http://www.acoustichorn.com/news/index.php?id=8313229270608416105
I meant to post a reply at his blog and...
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MochaMike, yes you are correct it would not be the “softness” but rather”liquidity”. Still what you are taking is applicable for the paper cone 4 to 15" drivers not compression drivers. Who knows how the compression drivers will react.
To the rest ...
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-Background- Enspired by Jeffery Jacksons system as displayed @ VSAC, I'm building a five-way horn system. Tapped horn for up to ~80Hz; w/ Eminence driver 65Hz Tractrix from ~80Hz to ~400Hz w/ fane 8"; 250Hz LeCleach from ~400Hz to ~2...
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I wasn't trying to critique Bert, or even get into an in-depth critique on the Swing, more Compression Driver configurations -- vertical vs. angled, and coaxial, (and maybe other factors which affect Sound). But I'm more and more real...
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Romy, You have a most different and refreshing way of understanding and explaining audio, sometimes I have trouble following your discussions, but I find your ideas most intriguing. By fast bass, ...
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I would not call them “bad”. They use very different magnets and meant to be used with higher power (with all negative consequences). You see the ceramic magnets are more or less OK for LF application but when a driver goes up and hits upper midrange...
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Dresden, I'm confused-- What is the target low knee? Upper knee? What is the flare rate? Expansion profile? (or T factor -- Hypex, Exponential Tractix, etc). And you want to use one 12" driver? or two in parallel? Or some...
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What is the purpose of having the flexibility to re-configure from straight to J horn?This thing will be large and massive enough that physically moving it from one configuration to another will be difficult and require a lot of effort. Conceptually...
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