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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Romy, I think you have neither a system with back chamber now (because the foam is closed pore), nor a "true compression driver" (because the foam is not rigid). Probably you mainly have a second vibrating system coupled to the cone that enhances mec...
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Gordan, I think you are missing the accent of what I meant to say. The Class A or not is not important for compression drivers and the S3 in particularly. I mean it is important and it much be ONLY class A but I do not see any SS amps switching in cl...
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[quote user="haralanov"] Take a look at the video: [/quote]I am not sure why you keep bringing the Vengerov’s video again and again. It is quite banal things and those infomercials of Vengerov educating in front of camera the sentimental girls ho...
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Haralanov, I guess you mean to say disconnect the tweeter on one side of your playback? not the whole left side of the playback...When you use compression drivers it is very important to design the horn taking care of the high frequency response. ...
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I was running the F120A for a whole day and now I can’t stress more than I did it in the subject of this post this - driver is ultimate nightmare. In full range it was just too brutal to list it and it sounded sometimes like mechanically distorted. S...
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[quote user="noviygera"]p.s from my experience of having a 500 sq. ft. listening room with 7 ft. ceiling and having two 18" woofers in a infinite baffle configuration, it is not enough to pressurize the room. I am talking about low and medium listeni...
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[quote user="Romy the Cat"]I am not familiar with those types of drivers and with the results they are able to show. [/quote]
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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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[quote user="oxric"]Mike duly explained to me that he would not vouch for the work of anyone not qualified and experienced with Vitavox drivers, given both the complexity of the work and the number of parts that go into making these drivers. I as...
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Nope, I never heard about those
drivers. For sure a compression driver that goes down to 80Hz might be interesting.
A few concerns I would have however.
The people who make such a
driver would not come from nowhere but they rather would b...
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A lot of people ask me about those drivers and I’ll try to compile my vision about them. I did try most of the possible tweeters: dome tweeters with cloth cones, varies type of hard metal domes, compression drivers with aluminum, titanium, phenolic a...
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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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I do not remember whose inhalation it was, also unfortunately those audio people flash each other with pictures, exchanging with audiopornography, but do not share their reason, thoughts of objectives.
In the given example the system designer obvi...
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Thank you for your answer.If I understand well, In purpose to do something realistic and good sounding. I should use at least 2 amplifiers (one for high frequencies and the GM-100 amp for low frequencies) with a tubes active filter at the inputs of e...
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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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Ronnie wrote (and posted the following image): "...I was thinking the same. But perhaps rubber rings can be used to seal the back chamber to make it instantly tune-able (without the hard foam)..."Romy wrote a thread called the "Practical Guide t...
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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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hi Romy! Good thought with the current on the damping...
I had another thought. High excusion might create lots of distortion in a compression chamber. No surprise.
But in my oppinion the sizes are often not in proportion. Lets calculate......
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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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I would like to thank you for taking the time to give me a very satisfying answer and explain in detail your views on the whole subject and give a little more insight in to how you do things. Yes I suppose I really knew all along it was coming and w...
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Novigera, let's ignore any issues of sound quality first. A horn loads its drivers and increases efficiency only at certain frequencies. The frequencies that are more efficient are based on length, taper and size of the mouth. That means that it does...
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I really would like the Vitavox users who use the bottom region of S2 driver to pay very serious attention to my post above. The redaction of compression in this driver and dropping the resonance frequencies does impacts the lower knee sound of the d...
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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="CO"]If you havent already, why not explore the Infinite baffle concept? Or a long terminated back chamber for that matter.
Current drive should also be very good on the lower registers.[/quote]
I did it. Any situation where sealing of ...
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Hello Romy and everyone here, Thanks again for your thoughts on the large horns. It seems best to start a new thread, as previous threads dealing with the "10-Footer" originally began as discussions of other subjects. Romy, you may want to move previ...
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After the painstaking setting up of the new Macondo, measuring all distance, paralleling the horns and time-aligning everything, after the setting up a correct level of the new channel’s attenuation (it turned out -2dB was necessary) I spent some tim...
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