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XSim free crossover designer
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Old 22nd June 2018, 12:49 AM   #531
bwaslo is offline bwaslo  United States
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XSim free crossover designer
What file are you trying to open? (maybe zip it up and post it here?). Or is it one of the demo circuits in the software? (Maybe got a bad download?).

There are some bugs in the beta version ("Xsim3D"), might be something in one of those?
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Old 22nd June 2018, 01:18 PM   #532
akarma 76 is offline akarma 76
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What distance for measurements is the most convenient when making 3way speaker?
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Old 22nd June 2018, 05:22 PM   #533
bwaslo is offline bwaslo  United States
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Originally Posted by akarma 76 View Post
What distance for measurements is the most convenient when making 3way speaker?
Depends on your room. In most domestic rooms, somewhere between 2ft an 4ft (60 and 120 cm) is usually used. Too close, they don't sum correctly, too far and you start measuring room effects instead of the speaker.

Usually for an idea of the bass response, you have to measure the woofer even closer to its cone. In effect, design the crossover with measurements from further back, but to eval the woofer's behavior at lower frequencies, assume it's closer to what you'd see in its very near field. (No one said this was all going to be straightforward)

Most important is having delays adjusted right between drivers. If using a system that locks phase (and you are sure it is behaving like that and the delay you see isn't "wandering"), you can just keep the mic position fixed and use the measurement of each driver as seen. Otherwise use the interference method to align dleays, see Jeff's paper: http://techtalk.parts-express.com/fi...tch?id=1149302
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Old 29th June 2018, 12:13 PM   #534
gezzer is offline gezzer
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Hello Bill, i just dropped in to give you a big thanks for this great piece of software! Inituitive, easy to use interface is awesome!
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Old 29th June 2018, 05:17 PM   #535
bwaslo is offline bwaslo  United States
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Thanks gezzer
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Old 1st July 2018, 06:10 PM   #536
mwmkravchenko is offline mwmkravchenko  Canada
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Originally Posted by bwaslo View Post
Thanks gezzer

Doesn't it feel good calling someone else Geezer
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Old 1st July 2018, 11:08 PM   #537
gezzer is offline gezzer
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Doesn't it feel good calling someone else Geezer
my surname is gezer and i choose this nickname way before i knew what did geezer mean lol
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Old 2nd July 2018, 01:37 AM   #538
mwmkravchenko is offline mwmkravchenko  Canada
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Originally Posted by gezzer View Post
my surname is gezer and i choose this nickname way before i knew what did geezer mean lol
I'm happy to see that you have a great sense of humor!
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Old 5th July 2018, 08:50 AM   #539
CD94 is offline CD94  United Kingdom
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Default Crossover tweaking

If I have a finished bi-wired or tri-wired system with crossover can I use xsim to modify the responses in the same way as the original design method?
i.e. use DATS and Omnimic to measure each driver through its own separate crossover components and load the results into xsim, then experiment with additional inductors/capacitors/resistors to modify the response and impedance of the total system.
That would allow the user to build a first crossover, test and trim to get a final result.
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