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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Understanding Line Array SystemsBy John Murray
Behind the buzz, there are a lot of factors at work in line arrays. An explanation and comparison of current models. This discussion can’t be contained in just a few paragraphs, so we must start with th...
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Your Typical Acoustical Suspension-type Loudspeaker enclosure witch has less then 90 db at 1 watt does not belong with a horn system that starts at 110db at 1 watt, even when you ad more then 1 driver, it is still way to far off to even consider usin...
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Recently Macondo was altered and converted into… nope, not into a Super Macondo :-) but in a “Larger Macondo”. The Super Macondo it will be when I resolved how to implement time delays along with a low pass flirter at midbass horn, that would enable ...
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Understanding Line Array SystemsBy John Murray
Behind the buzz, there are a lot of factors at work in line arrays. An explanation and comparison of current models. This discussion can’t be contained in just a few paragraphs, so we must start with th...
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Continuing to harass the readers of my site and myself with the good news about the performance of my SA8535 driver I would like to post a very educational article about the subject. As I told before, being familiar with sound of ribbons then never i...
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Dear John,
I hope you don't mind me writing directly to you. I've been posting on Romy the
Cat's audio boa...
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Bass arrays are considered infinite when they cover min. 70% of the room height. It is also important that they are mirrored (ceiling perpendicular to the array). Your new room is not ideal for bass arrays.I don't know whether you have read this pape...
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Rakesh, I moved your post to this thread as I feel it is more relevant here, I hope you do not mind. You ask yours the very same question that I ask myself. I do not have definitive answers to them:
[quote user="oxric"] I am presently consider...
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Angelo,
I care less about the “commercially available” objectives, honestly it is too boring.
However, whatever you do not be distracted that what you are making will be reminding Avantgardes. The Avantgarde Trio Classic (in vertical configuration)...
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[quote user="Romy the Cat"]
Aura made their 1808 driver in 80s and most of the 90s and it was wonderful. It had huge high-temperature neodymium magnet, unique magnet geometry with underhung 4" edgewound aluminum voice coil. It was the only 18-inch...
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This is very interesting observation. I am in away envy that Petar went for a set of large woofers (4x23”!). This is the way to go! Unfortunately I did not experiment with it even I had the drivers and means to do it. My problem was with the fact...
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Chris, I did ask myself the same question: perhaps my given PTR9 is demagnetized. I called the last night to the owner of the tweeters and he said that he uses them for 7 years and they driver should be fine. He also expressed a lot of doubts if the ...
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Another bogus idea.If a perfect upper bass could be achieved by means of spherical (approx. 1m diameter horn), what would be the next acceptable solution,if space considerations do not allow big horns? Perhaps that could be a line array of small dire...
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[quote user="oxric"] I like the idea of angling the enclosure, although I am not sure about the idea of the lowest drivers firing at the floor...I would use a series of modules each containing two tightly fit drivers which would fire parallel to the ...
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Paul, in my view the air-caps as an ultimate cap, the ultimate by own intrinsic topology. It is particularly the case for the 834P- like application as in there the cap is not biased by high voltage DC and gets constantly re-polarized. You see the pr...
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Yes, the "Injection Channel" consists of a pair of Tannoy Reds, used as direct radiators, in sealed enclosures. I would not say that they overly specifically optimized. I did many optimizations equalizing them, filtering them but I never was able to ...
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Listening to the horns, it seems that they indeed die somewhere below 120Hz. I was surprised, and a little disappointed that it seemed so steep. Good to hear that it's to be expected!!Yes, I'm using a 30-something-Hz 1st order high pass on them ...
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[quote user="AnonymousUser"] Line level crossing or passive speaker level crossovers-same devil. [/quote]
If you are planning to build a dedicated LF SET then the line level crossing vs. passive speaker level crossovers is not the same devil. With a...
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Romy,it would be interesting to test whether it is really that impossible to get into the near field at 30 Hz as Griffin's simple formula in the line array white paper implies. I am thinking about laying the arrays on the ground, having in mind ceili...
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I feel like i want a line array of lowThers with random graininess applied to their paper membrane as my oops channel! I would want the strings to have the texture of aged beef when it is cooked "aller/retour" (french alwys use food metaphors.).Serio...
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One other nice thing about floor or ceiling-mounting the lower-bass horns is that you wouldn't need such a huge living room; the space would be easier to load (sonically), and you'd have a much easier time finding an appropriate house. Romy wrote :"....
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I hope you do find some amplification that works, or new "way" of using the tannoy, as these driver still have several tricks up their sleeves, especially when compared to the hordes of mass crap that's for sale. What you refer to as the "deen ...
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Yes indeed. The company was originally Nova Physics and appears to have been sold on to Sam Laufer, a lawyer by profession originally who brought in Mark Porzilli of Melos and Pipedreams fame. I do not know if this company actually manufactures or se...
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[quote user="amdismal"]The crossovers were fourth order, which is what I use on my horns. Second order, I have found, can give a better blending, but reduced the delicacy and transparency in my system. But it's very complicated, and further exacerb...
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James, you said that “Romy seems sure that Line arrays will only work properly when used on the long dimension of the room”, still you do not defined what it “only work properly”. Wherever you put the woofers they will work – the question would...
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We enter a complicated region as the lower driver we go the drivers could be used for different purposes and it is very hard to generalize. A 10-incher might be MF driver and LF driver. In my past I experimented with few MF 10-inchers, including some...
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[quote user="slowmotion"]Your ears ( or some other hearing/sensing mechanism in your body ) "feels" large objects around you, and I think they will definitely "hear" relatively large upperbass horns mounted in the ceiling, even if no music is playing...
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[quote user="Chirag"]Outside of the already constructed bass towers, is there a reason you are looking exclusively for 10" drivers? I have heard a pair of stacked 15" Lambda's on each side supplementing/providing bass to lower midbass under som...
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Ronnie,
Arranging the driver in a line array is a fierily straight forward thing. Also be advised that the arrays will less likely work across a short wall, and you need to use a long wall. Generally it is imposable to advise anything as any rooms a...
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Be, there might be any number of reasons for listening to speakers more or less on or off axis, but I think in the case of drivers firing early across the axes of other drivers there are identifiable issues that can be heard as "problems" by some lis...
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All context of this site except the Forum's posts
Copyright © Roman Bessnow 2004-2013
All messages within the Site’s Forum Copyright © by
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