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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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I have order 4cu feet sealed enclosure for two 15 drivers. It
is relatively small box but I need to hit minus 6-8 dB at 50Hz. The collection
of the drivers I have would be following: Vitavox AK51 and 15/40, Altec 416B
and 515B. I like Vitavox tone...
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thanks I have a few questions to ask if you do not mind:
1) Did you experiment with surface of the horns and a negative contribution of smooth surface to Sound?Smooth surface are fine don't waste my time on a trival matters.
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My first impressions a about the “differences” of field-coiled derived form the time when I ran the Telefunkens war time drivers but at that time I had no reference how the same driver would act with permanent magnet. Also, the Telefunkens are the re...
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The Morons™ at AA’s between selling to each other what they did not like and topping each other on their shoulders came up with a subject what horn installation would be if price would be no object. The question is semi-foolish as price is never ...
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[quote user="cv"]This is but one reason why I'm asking Martin Seddon to make me a pair of 160Hz horns...[/quote]Another problem….
Chris, be carefully with those large 160Hz horn and S2. The guys who make then have no instruments to center the mounti...
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Thanks, Paul
I have seen your comment about the TAD bug screens at AA. The bug screens are a touchy subject – with some driver removing them works fine with some made sound worse. I did not experiment with TAD’s bug screens…
Generally the bug scree...
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[quote user="jessie.dazzle"] To that I would only add the following: Start saving up now for a second pair of S2s.[/quote]
Yes and no. I used the second S2 for lower MF range but it is not only way to go. I would propose that any driver with large a...
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Electronluv,
As I understand you were a few years out of audio business and it looks like you are back, nice to see.
I saw at your site just MF compression drivers not the bass drivers. Anyhow, I have a few questions to ask. You use berylli...
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I do not look for beryllium diaphragms, I just was wondering if someone has succeeded to manufacture them in “basement conditions”. As I understand it shall be VERY difficult.
Well, your driver might be interesting. If I was able to accommodat...
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well, i believe that the popularity of the better fostex tweeters comes from their typical, off-shelf sound which is soft and easy on ear in comparison with super-resolunt Ti or Be diaphragm equipped competition. they very much suit any sharpness com...
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Coops, I less care about the attacks on me, I know that I am a pH-indicator of Moronity among audio freaks. So, if some specific idiots out there are not happy about me then… it is good for me. The higher we climb in mountains the stronger wind and l...
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[quote
user="Murataltuev"]
What will be your suggestion for upper bass
channel using compression driver ? [/quote]
I do not use compression driver
for bass channel. I would like to have my system esthetically balanced, to get let
say 120H...
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[quote
user="noviygera"]Also you say: "In reality the driver is the
key"So let me ask for advice on suitable driver(s). This be my next step.
Need I select a size? Or driver with certain spec? For example lets say driver
"x" is good for this rang...
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Yes, Anthony, any horn by nature has what I call horn arc. At the bottom of the range the channel boost output, then the gain slowly decay and become almost like a direct radiator and then the output begin to roll off at HF by horn until the driver r...
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[quote user="Romy the Cat"]One of the emails that I receive is very interesting. The author warns: “...when experimenting with throaths I found that if the compression is big, near 2 or higher you get some big, smooth, unfocused aqualung sound. You...
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[quote user="ulf"] Well, it was not really a surprise to us that the horn without the phase plug was dissapointing. Without the plug we had a horn that was a bit too short, had too large front cavity and less compression than we desired. [/quote]
It...
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[quote user="oxric"] I have always felt that if I went for a vertical array of 10" drivers, I would keep the drivers closer spaced than you do in your 'Dunlavy' made enclosure. Based on the 110" height of the tower, I see that you would be doing this...
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[quote user="Paul S"]Murat, that's a lot to ask from one driver. [/quote]1000-12 000 is 3.5 octaves.300-3000 is a bit less.[quote]In any case, if you do get useful results with the paper driver, you will have to turn right around and integrate it bac...
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Romy
Your rules say no direct answers so forgive me this one.
My horn is a true 21Hz horn.If you want to do the calcs:(More or less) Throat 6264 square cm.Mouth 48312 cmsq.M or Q 0.7 depth 3m.Quarter space loading.It does not quite make 21Hz.-3...
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Pierre, yes, I understand it. It kind or irrelevant what they destined for and yes, in domestic applications in context of low power we can use it lower. What I am saying is that as we do use it at extreme low range we deal with slightly overdamped d...
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Well, I cannot say that i have much interest in the installations on his Facebook page and this should be a strong indicator of the type of audience being targeted by the driver manufacturer.Nonetheless, he has sent me some frequency responses, but n...
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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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Haralanov, I do not think that the “information” that you found is indicative of anything. If they changed coils and diaphragms on their LOMO drivers (and I presume that if they change the diaphragms then they did not keep the LOMO original suspensio...
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Hello Romy, thanks for your guide.I've been thinking and I feel that some basic upper bass channel ideas are forming; they a result of, as you say ,"organic" derivation from the rest of my acoustic system. I am pretty excited about this idea i have. ...
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I've only had the pleasure of listening to 'professional' horns (whatever 'professional' really stands for)--horn normally used in concerts and small venues. (It was always so obvious to me--by listening--that the range of the horn-loaded 'bass...
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The AA guy with name Kloss runs on side a company “KCS loudspeakers”
http://www.kcsloudspeakers.com/
I do not think he does anything with his company. He is known for years helping other DIYers like himself to make theirs loudspea...
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Adrian, I had Edgarhorns that have evolved since I bought them in 2005. In my current set-up, nothing remains of the original Edgarhorns as conceived by Bruce, other than the speaker system remains front loaded horns. I noticed the same sense of he...
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The AudioFederation guy posted pictures from RMAF show with Cogent room. (The images are courtesy to http://www.audiofederation.com)
I was wrong in my previous post, as Cogent did demonstrate their loudspeakers with Ionovac ion tweeter. Yester...
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[quote
user="jackydai"]My basic point is: the flare rate has to be coherent
right from the entrance of phase plugs. In this sense, not even Bruce and Sam
did it right, I’m afraid to say. In many cases the driver and the horn are
designed by diffe...
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Hm, this is what I am playing how: the new 18-cell and S3. I run it from a full time Milq and use it with no filter of any kid. Rony is right the depth effect is there, it is not even depth but rather multi-dimensionality. Indeed very pleasant feelin...
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