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Old 15th January 2013, 11:37 PM   #1
spicer is offline spicer  Canada
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Default Line_array xover

My next project is to build line array with these parts.

https://www.solen.ca/pdf/dayton/PT2C-8.pdf
https://www.solen.ca/pdf/silver/w17rc3808.pdf


There would be 9 mid-bass and 9 tweeters in each line array. Line arrays will be concave on front (

What would be your suggestions to build the Xover

Spicer
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Old 16th January 2013, 03:50 AM   #2
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Default how i'd do it..

I would cross the tweeters around 3000hz. Use a 6.8 uf capacitor on each tweeter.

It might be a little tricky wiring nine speakers into a usable ohms. It would be easier to figure out if you use 8 woofers..

Hope this helps...
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Old 16th January 2013, 04:56 AM   #3
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You can wire 9 drivers in a 3 X 3 series/parallel configuration and still get 8 ohms and still use one 6.8uf capacitor for the crossover.

FWIW

jer
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Old 17th January 2013, 01:32 AM   #4
spicer is offline spicer  Canada
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Thank

May be some Inductors ??

or the mid bass is full range ??
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Old 17th January 2013, 02:32 AM   #5
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It is hard to say what would work best until you get it assembled and do some frequency response and impedance tests on the system as a whole.

Have you considered an active crossover for it?

This would allow you to experiment very easily and then once you find the parameters that work best for you then you could design a passive crossover for the system if you wish to do so.

With that many drivers you should be able to drive it with two decent sized power amps.
DIY amps maybe?



jer
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Old 22nd January 2013, 09:49 PM   #6
spicer is offline spicer  Canada
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Sorry for the delay

For my x-over i have this model for start...

what do you think ?

http://courrielweb-4.videotron.ca/uw...08_9xPT2C8.pdf
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Old 22nd January 2013, 10:59 PM   #7
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The link doesn't work.

jer
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Old 22nd January 2013, 11:33 PM   #8
spicer is offline spicer  Canada
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Quote:
Originally Posted by geraldfryjr View Post
The link doesn't work.

jer

?????? i check ....

He work fine here ?????

Last edited by spicer; 22nd January 2013 at 11:41 PM.
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Old 23rd January 2013, 12:00 AM   #9
spicer is offline spicer  Canada
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Old 23rd January 2013, 02:47 AM   #10
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Thanks !

That looks like a standard crossover design.

They used the 12db Linkwitz-Riley cuve.

here are a couple of calculators that may help you.
I plugged in the value's and they came up with very similar results,

2-Way Crossover Designer / Calculator

Crossover Design Calculators


jer
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