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Crossover Design SOFTWARE
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gen0me View Drop Down
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Points: 999 		Post Options Post Options   Thanks (0) Thanks(0)   Quote gen0me Quote  Post ReplyReply Direct Link To This Post Posted: 13 August 2018 at 5:03pm
??
But:

Do you have off axis measurements? Im curious how those coaxials behave off axis.


Edited by gen0me - 13 August 2018 at 5:12pm
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gen0me View Drop Down
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Points: 999 		Post Options Post Options   Thanks (0) Thanks(0)   Quote gen0me Quote  Post ReplyReply Direct Link To This Post Posted: 13 August 2018 at 5:07pm
.

Edited by gen0me - 13 August 2018 at 5:08pm
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MarjanM View Drop Down
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Points: 7816 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MarjanM Quote  Post ReplyReply Direct Link To This Post Posted: 13 August 2018 at 6:29pm
That horn on the triax is more of a traktrix horn, not a CD, so id does drop rather fast of axis on the very high end. I ma yet to do detailed of axis measurements. 
Marjan Milosevic
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Points: 425 		Post Options Post Options   Thanks (0) Thanks(0)   Quote stevie Quote  Post ReplyReply Direct Link To This Post Posted: 13 August 2018 at 10:09pm
Crossover modellers can save you a lot of time, but I don't know any that model off-axis performance. To do that you'd have to input the off-axis performance of all the drivers, which is not a trivial task.
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Try the upper mentioned VituixCAD. It does everything. I was supposing just LspCAD, which is such a serious and professional software, was able to do that much things... ofc you need to charge the off axis measurements, not that difficult to achieve, just it is needed to be quite fickeney to get ralr and good measurements in normal outdoor environments.
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Points: 134 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tthorsten Quote  Post ReplyReply Direct Link To This Post Posted: 14 August 2018 at 5:16pm
@Marian

whats about

Phase

Impedance

issues

and even coverage - all that can be done in an simulation

and it fits 95%
www.tb-audio.de

LEVELchek www.levelcheck.de
SPL tracking

SATlive www.satlive.audio
best Measurementsoftware for Live People

DBlimits
www.dblimits.com

Isemcon EMX7510 measurment Microphon
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MarjanM View Drop Down
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Points: 7816 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MarjanM Quote  Post ReplyReply Direct Link To This Post Posted: 14 August 2018 at 5:19pm
Tell me how exactly the crossover can affect the off axis response and phase, without affecting it on axis too?
Marjan Milosevic
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LeruSound View Drop Down
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Points: 171 		Post Options Post Options   Thanks (0) Thanks(0)   Quote LeruSound Quote  Post ReplyReply Direct Link To This Post Posted: 14 August 2018 at 5:25pm
I see in some cases you can easily predict and align without much efforts and time.on simualtion software. But that doesn't make any reason to not measure, in that case the resulta could just be better.. If you have multiple ways with space disaligned source you must do that in order to achieve a good coverage. That's why I don't know how to reply to you Marjan, honestly..

Edited by LeruSound - 14 August 2018 at 5:26pm
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Indeed, I'm sure like a lot of modelling it can save you a lot of time and money in the intitial design phase of a product. If you know what you are doing. Else garbage in = garbage out.
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Originally posted by MarjanM MarjanM wrote:

Tell me how exactly the crossover can affect the off axis response and phase, without affecting it on axis too?

It affects both, but you manage the results before make them physically.
If you have higher cuts where even small distances becomes significsnt you can trick and model the crossovers in order to find the best summation among a wider angle. This is how I get it.

What you say makes sense, but would be good to measure the on axis too, than if you are experienced enough you can assume the off axis stays good depending on the loadings dispersions.
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gen0me View Drop Down
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Usually when response if flat rest also looks good. And is just up to type of design used not the quality of that design itself. Its sort of the strange thinking but when you get a flat response from a particular speaker it means you did good in that particular design. Except cd horns.
Compare the response and phase above.
Look at the places between crossovers:
Flat response >> nice phase
Ofc phase shifts a lot 900hz-1.6k but thats because of the high pass on mid.
Dont you have a demo with them?Wink


Edited by gen0me - 14 August 2018 at 6:36pm
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Points: 159 		Post Options Post Options   Thanks (0) Thanks(0)   Quote PavelP Quote  Post ReplyReply Direct Link To This Post Posted: 17 August 2018 at 8:56am
LSP Cad can model offaxis but it's the same bullshit as response and phase graphs: sometimes it fits simulation, sometimes not and you have to do something to make it work.
Volnovod audio https://vk.com/kb_volnovod
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