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Posting new threads at the site has been fixed.
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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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My approach of the Mid/Upper bass horn and design decisions have been pursuant to a specific acoustic performance target first, quality of construction second, and cosmetic appearance of the finished horn the third. (I believe I was clear in a ...
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The previous response I posted, 'Partial Disclosure For The Sake Of Clarity', assumes you are referring to the second prototype of my proposed design. (The base design is the same, with the exception that it uses one driver instead of two.)[quo...
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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 first two prototypes is actually one build, the only difference being the volume/area of the chamber. (Perhaps I could have chosen more proper words in describing this part of the horn. By 'volume/area chamber', I'm specifically refer...
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In reference to the two (or three) prototypes, the base design contains one (1) driver, a second proposal to the base design uses two (2) drivers (using almost the same exact enclosure--an increase of volume/area in the chamber containing the two [2]...
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I'm not sure I understand what point you consider a priority, but I can explain the reason for my initial inquiry and what I intend to do.My initial inquiry was intended to acquire information on whether a horn with a target range of 40Hz to 400Hz co...
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(..in between errands..)In respects to whether or not using both the front and rear energy will work, I will have to listen for myself. As I commented earlier elsewhere in this thread, an arrangement using two drivers may prove to be the better...
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The target range is 40Hz to 400Hz. One JBL 2206H 12" drive (an alternative configuration is with two [2] 2206H drivers). Exponential. Interesting that you mention a J horn, and that the same could be achieved by two horns (as oppose...
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Mouth size is the one dimension I've struggled with most.As of the present time, I've deduced to use a mouth size that may prevent me from achieving the target frequency of 40Hz, and instead produce a frequency of about 55Hz or even 60Hz. I can...
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hmm...I didn't realise I had left my browser logged-in to your site (I left my PC on over night, downloading some files).'..the only advantage that class-D amplification has is cost, size, heat generation and power.'In my eyes, that's more than I cou...
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The throat diameter of 7" is what I first approximated as an acceptable size, with the 4" being an alternative (should some unwanted effects arise, I may then experiment with the 4" throat). I can't simply assume 7" will be correct (though that...
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Interesting. The manufacturer published specs I had observed for the 2206H are different from what I remembered, for one obvious reason: I was remembering the specs for a 15" driver, and not the JBL 2206H. No matter, since manufactu...
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I erroneously referred to the 'throat' of the horn as the 'mouth' at the beginning of the response. (Of course, where ever I noted a dimension of 4" or 7" I'm referrering to the throat of the horn--I haven't settled on the exact dimension of th...
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I'm also concerned about the range, but I believe that in using an appropriate driver, I may be able to achieve a target range of 40Hz to 400Hz.One reason for my wanting to achieve this range is precisely for the purpose of not wanting to have a 4-Wa...
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I know many would view the two frequencies as similar and perhaps of little consequence, but I have my reasons.My primary, driving objective for wanting the horn to produce sound faithfully to at least 90Hz is that 90Hz represents an ideal crossover ...
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In terms of the length of the horn, I'm allowing myself a total height of 7'6" (just below the average ceiling height of 8'). In regards to the mouth diameter, that's another matter. (It appears that I will have to build two [2] different...
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I concur the objective to acquire performance in the desired frequency range must predominate most other considerations of design.My objective for the design of the mid/upper bass horn is to attain effortless, smooth, real-world horn-loaded response ...
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It appears that the approach you present may subject a designer to a more 'trial and error' approach. On the other hand, I agree that the actual performance of a horn cannot be fully determined until it has been built and tested (the process of...
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I understand your point of view concerning 'vintage' in comparison to 'contemporary'. What I find the most troubling with many of the present/contemporary attempts in design is that many people claim to have a truly horn loaded system capable o...
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I've been doing a lot of research on how a properly designed horn works
(from initial Western Electric designs to present day efforts) in order
to get a real grasp of what will and will not work. I've read and
saved hundreds of papers and de...
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I'm a new reader of your website and one subject which interests me a lot is that of upper bass horns.As you have noted time and again (with which I agree almost completely, after reading a lot of 'research' [many claiming to defy the laws of physics...
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