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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Hello guy,
Regarding your question : "...What ratio of diaphragm area to throat area did you arrive at (for the large horn) & how did you choose it?..."
The ratio I used for the 45Hz horn is about 65% of the ø of the diaphragm LESS THE SUSPENS...
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I have with bass not a problem but dilemma. I do not have problematic bass but I have a dilemma how to supplement my current bass with ULF without affecting my current bass. Adding ULF defuses my current bass, renders the bass phasing to be more ...
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[quote
user="koh123"]Upon reflection I forgot that we ultimately listen to
the sound produced and not the beautiful computer simulated SPL profile.
So I went back to old school thinking and re-generated the mid-bass tractrix
horn with the mouth ...
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[quote user="Jeffrey Jackson"] It seems that I do agree with you about the sound of compression driver midbass.. at least from what I have heard in my own room.. I have heard the big ALE drivers you mention on a bent steel horn similar to what ALE bu...
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[quote]That is a bold waste of
speaker’s surface for a small result.[/quote]Yeah, but plywood is cheap and the result is audibly noticeable. Baffle extensions were recommended for all of the Altec VOT cabinets too. Make a big improvement for cheap ...
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I should not even stress more that I do not like people at DIYAudio.com. The domination majority of them incredible idiots and the brightest among them… do not really have any perspective what audio is all about. I do admit that in some seldom cases ...
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[quote user="Joe Roberts"] Yeah, but plywood is cheap and the result is audibly noticeable. Baffle extensions were recommended for all of the Altec VOT cabinets too. Make a big improvement for cheap if you have the space.
As the frequency dec...
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If you know how in some optical systems imagery get destroyed when an aperture getting closed to F64 or even smaller, then you understand what happens in compression driver when frequency get higher and spaces smaller. Yes, the proximity of wavelengt...
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[quote user="rdrysdale"]Our bass driver has a 12v field coil motor, it developes just over 20 kilogauss flux density using a low carbon steel pole piece. The exit diameter is 4 inches at the moment. The diaphragm is 6 inches in diameter and made of a...
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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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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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[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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I would contend that most of the microphonics and feedback in valves is usually caused by the resonances and vibrations of whatever they are plugged into. Glass is very rigid which is only enforced by the shape into which it is mol...
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[quote user="Jeffrey Jackson"] Ming would like to provide this custom basshorn service to his customers in the US market.. Goto Japan has nothing to do with this... [/quote]
Very cool, the more “hornier” the better as far as I concern.
[quote user...
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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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I sometimes visit an Australian site and familiarize myself
with progress of “acg” who it trying to build Macondo like acoustic system.
http://www.stereo.net.au/forums/index.php/topic/75784-deep-end-diy-my-first-speaker-project
A few weeks a...
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This is the text that John posted a few years back at Triode Mafia. John allowed me to post it here warning that he have learned more about tapped horn since then and hat his opinion might have changed since then. -- *****************************...
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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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... or wondering if it has any new insight into horn design.I did not read the book but I find funny that person who presumably do not “believe” in horn write a review about the presumably horn related book. It would be similar to ask a blind person ...
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If there is one thing that I have learned in life, and heard many times, is that making a mistake is not a bad thing if you learn from it. In addition the lesson learned is just as valuable if you learned it from someone elses...
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[quote user="Romy the Cat"]The back plate is located a few mm from diaphragm and any back reflections are not compatible with wavelength. [/quote]
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