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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="Romy the Cat"]
The point that am trying to make is that the subject of the “home use“ driver vs. the “pro use drivers” is a bit complicated and the thing are not so clear as you, Stefano, is trying to present it to yourself.[/quote]Tha...
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[quote user="jessie.dazzle"] After observing a pair of AK151s operating in free air, though only lightly driven, I just don't see how they can possibly generate so much pressure, as the cone barely moves! [/quote]
Why shout they move? One of the ide...
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A friend of my after reading my comments about the EdgarHorn installation in Vegas (in here) asked me why do I think the bass in Bruce’s room behave as it behaved. I tried to think about it. Some of those thoughts intersect with some other projects t...
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Gordan, this is slightly different
concept. The presence of multiple
outputs
with volume control does not assure that each of the channel has own time delay
circuitry. Plus it look like Najda
does volume at digital level, which is not ...
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Will try to answer all questions here.Romy: I understand why you do not wish to use the term “surround sound”, but it is the accepted term for what we are discussing. You may add other terminology, but it only muddies the debate until others accept i...
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Bill, it sounds like you have made a significant investment (time and resources) into (re)producing reverberation with your entire system, also setting time alignments of various drivers, across the board, and I assume you would not have gotten this ...
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[quote user="noviygera"]
Murat,
I was looking at your midbass horn design and I am wondering, how are you planning to time align that long midbass with the rest of the channels that seem to be time aligned. I mean, currently the midbass is phys...
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I guy that I know invited me a few way back to listen a new speaker that he brought from a Plaishner , the Switzerland manufacturer. The company make own flat loudspeakers and now they looks like parley to making speakers. This is very innovative des...
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[quote user="noviygera"]I have been thinking about how nice it would be to have have a good sounding DSP for crossover and delay functionality. I know this subject was covered here before but what was talked about is this DSP is not that good, and th...
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Well, Romy has often said it, digital can delay but not filter and analog can filter but not delay (in respect to sound quality). I most certainly agree.So the speaker is not time aligned and they try to clean up the mess digitally. Perhaps with a mo...
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I dont think a standart klipschorn would satisfy the cat. I had one, then I heavily modified it and in the end I built my full scale horn system. I still keep that modded khorn system as a second system.If I may suggest, if you use klipschorn, you ca...
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[quote user="kodomo"]I dont think a standart klipschorn would satisfy the cat. I had one, then I heavily modified it and in the end I built my full scale horn system. I still keep that modded khorn system as a second system.If I may suggest, if you u...
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There are no set of laws in there - you have to play with it and then you might ketch something. Certainly for a proper bass reproduction (or generally music reproduction) you need somewhere around 1 sec decay in your room. You might have a large roo...
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I think we are all agreed that if time alignment and space were not issues, a bass horn would be the way to go.Now, I'm fairly convinced that the overwhelming benefit of horns in this range is the phase response, ie flat group delay vs frequency. Mos...
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One thing to bear in mind with the bass horn delay - I thank Tom Danley for explaining all this a while ago - if I understand it right, a small direct radiator (ie small in relation to the wavelength - which will obviously be the case with ...
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[quote user="NBC"]Hi Romy,1) What dimensions for 1808 baffle would you suggest? The Golden rule is: 1.6 height, 1.0 width, 0.6 depth. 2) Is floor-firing vs. front-facing cone useful or preferred?I wouldn't use the 1808 or 8196 in ...
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I really do not understand what conclusion you make by shutting the tube down.
Also, you said that the hysteresis didn't change over time. Dos it men that if you increase the time/div of your scope t have the “hysteresis” delay an itch wide then...
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Actually it is very interesting question and I almost feel you pain for decision you will be making. I do not think that anyone would be able to express any arbitral opinion about the subject, as least an opinion that worth to follow. You see, buildi...
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[quote user="Dominic"]Here's a threeway with the BMS coax like in your orpheans nested in what i think is a 80hz horn which is driven by 2x15"sI'm not sure how well the time alignment works. I think the woofers are a bit too far back.in any case: [/q...
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Paul -- I used 1st order & bandpass on the Beyma. I think that 2nd on the Lowther would have been better.I set out to try and extend one "way" from the end of a wide-range drive unit, downwards. This I found to be well nigh impossible -- perhaps ...
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I was thinking about a space-economical way to arm playback with midbass 50Hz horn. It is not that I am into it myself but conceptually I was wondering how to put all of necessarily things within a minimum compromise in minimum footprint. I came up w...
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Robert, I understand what you say. Unfortunately this boat had sailed. I did not think about it from beginning and if I did then I would put into the design some decoupling provisions. At this point there is no time and there is not design margins wh...
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Since I change the transformer I picked some harmonics and now I feel that my midbass has a bit too long roll off. I moved the second low pass filter close to the first filter. After a very careful listening and some thinking I ended up with setting ...
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Hi Jessie:It is indeed a (t)horny dilemna whether to get rid of the midbass horns now, with a view to starting all over again and customise the new horns for your eventual new home in Detroit or ship them at unfortunately what will be a very substant...
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Hello again Romy and cats... sorry so slow in replying to this thread... the recent posts generated an automatic email reminder... :^)so a few things... one, there is a pair of Goto 370 on eBay and pictures of insides... the newer ones are made the s...
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It seem a market test for that type of recording. They probably will launch a few more "luxurious" limited editions to cover everything they spent and guarantee some profit before lower the cost, and if they find out that fashion could be profitable ...
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About this time last year I decided to stop using my PP2000. It has been sitting in my basement gathering dust all this time. I even put it up for sale last year but only received stupid offers for it, so decided to keep it.I've been having problems ...
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Rowuk, first of all, I very much recommend you do not undertake the Paul’s advice and do not go for any implementation of bass with bigger drivers or more driver of different topology of bass section like OB and so on. For sure better bass would ...
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Number one, that I'd like to run by you guys due to it's simpler nature and closer to reality execution is the idea I have been thinking about. No first hand experience with any of this.Say we use something like altec 1505b multicellular horn that sh...
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[quote user="noviygera"]Number one, that I'd like to run by you guys due to it's simpler nature and closer to reality execution is the idea I have been thinking about. No first hand experience with any of this.Say we use something like altec 1505b mu...
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