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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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[quote user="Gargoyle"] Romy the Cat wrote: Scott L wrote: the last time I checked, you were using 6each
@ 10 inch low frequency drivers per side. That's "getting there" but
still not enough to produce an acoustical watt. (which horns CAN do).
...
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The mouth of the left channel is done. Now it has the corners are glued in - you can see in the joins between the pans are chorded – you can see it on the first image. It is left just to finks beefing up the frame – you can see on the second im...
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Here I would like to share some basic ideas about the skeleton of the horn. This is just a view from 50.000 feet but it will give some illustration what is brewing in my mind.
The one side of the triangular horn will be flat and will sit at le...
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Well, I have to admit that I did not listen the whole sound of AC vs. DC filaments yet. I will bring home today my DC lab supply that I use for my electromagnet coil and will give the try. I still at this point am not concerned about the “whole ...
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[quote user="Romy the Cat"]Sand damping it beautiful, it is well-recognized, but you do pay cost for it, in your case the cost is space. [/quote]I know that Romy… but without the massive amounts of sand, there are always some vibrations felt when I t...
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Ok... Assuming the lack of time alignment is compensated for via a DSP:
There are likely large chunks of the frequency spectrum that go un addressed, and equally large chunks that are mall-addressed.
I would say that there are two main ranges ...
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Hello all :::: This will be my first post, and I am writing first to thank Romy and the lovely Koshka for making the results of their research available to others, and also to ask for help :::: I am something of a "New Horns Guy" (cringe !), as I am ...
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"It is not an accident that I liked the article about the “Resonating Oops” to this thread."Interesting. I'm just completing my 125hz midbass horns. And I'm deciding how to construct the back chamber. I think I will experiment with a removable and tu...
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[quote user="angeloitacare"]hi Pauli had already Altec horns, and comparing them to wood horns, they really sound poor. What i really doubtis if someone is able to hear the difference between high gloss finish/ high porosity surface of horns.I ...
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Hi!
I just thought of something that could have some relation to this topic:
Take a horn with a driver, the driver produces a signal, the pressure wave will travel outwards more or less like a spherical wave front along the axis of the horn, think ...
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At recent Nord-West trade show Jeffrey Jackson, the guy who runs Experience Music site, demonstrated his new horn Installation. I know little about it and would like to make some comments about what is feel is obvious from the image.
It is 5-ways ...
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Mani at al. I have a paid of zu druids. Running them with 15W amp (d-class) and it is not enough for high level, although it does better than you expect. The soundstage sensitivity measurement was 97dB, but their test did not load the driver correctl...
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[quote user="cv"]"Believe me or not but when we made Macondo the appearance was not a concerns of John an me"So why did you paint it then? :-)Seriously though, it occurred to me that the Henry Ford colour scheme for your kit was was quite d...
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[quote user="Romy the Cat"]...but I was wondering how the length of the port and the most important the proximity of it to boundary affects sound. [/quote]A general rule is to keep the end of the port at least twice its diameter away from walls....
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Whatever I thinking I am again and again return the design idea below. They thin might be even covered by drapes in the room and wify would LOVE that. The idea is elegant and non-intrusive. The key would be to have some math and to calculat...
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[quote user="Jorge"]Having listened to your system I am very interested in a comparison between live music and something similar (quartet) sounding in your playback, on the same room, you state that live was "too high resolution" and that for playba...
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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="Romy the Cat"] anthony wrote: Then
the AC-DC conversion on the first floor, filter caps and output transformers on
the third level with the amplifiers sitting proud on top. I don't want to
see any caps or transformers...just valves.P...
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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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[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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The back chambers are complete. All primary and secondary elements are glued. The only thing that we did not do for my Sunday, August 12 checkpoint is the final sanding and priming the horns. We decided to do final sanding after the horns are upstair...
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As can be seen in above photos, the front chamber is in reality "chamber of horrors" with highly polished surface interior, and look at the phase plug, after disassembly, I put it back together, and how can you align it? All that holds it togethe...
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"I may be wrong to continue here with M4 ideas, Romy, feel free to move this where you want, thanks".
In my very audio eccentric strange mind, there is two concepts for M4 that pop to the surface, and that merit some explorations. Se...
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I have received some questions and criticism about tapped horns. In order to spread a better understand of tapped horns, I’ll restate the questions and try to answer them.
1.) The mouth of the tapped horn is too small to be useful.
Answer: ...
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[quote user="jessie.dazzle"]Wow, 6 x 15" drivers (!!!); though the curved profile certainly imparts rigidity, I'm guessing this horn must resonate more than a bit (no bracing until the mouth) -- but I like this thing.
Interesting, the phase plug-lik...
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Hmmm, are you sure that you do not do a mistake?
Jessie, I do not know how to say it but looking at your last picture something does not work for me. The hone that you made are elegant and graceful but painted in glossy black with that very rough st...
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[quote user="Romy the Cat"]That is my constant dilemma while
I socializing with audio people. Om a surface the question about T/S parameters for Goto is reasonable.
It means now I need to correlate whoever I know Goto user and the people who
know ...
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Hello,A couple of things to correct here - the horn flare is not conical even though the exterior surface gives that impression.Also I don't believe Jeffrey has any affiliation with weiss or other industry types at all - in fact, from what I've seen ...
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Horns are of course some kind of band pass filters with different kind of ripples at lover cutoff and beaming at upper cut off, according to horn type.
Maybe it should be added ...
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[quote user="Dominik"]You probably decline this option, because this horn is from plasctic ( You can take carbon horn also).Polish autotech make Iwata 300 for me. You Can order from them what You want.[/quote]
Yes, the Iwata horns are good as ...
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