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Old 29th March 2011, 03:34 PM   #1
docjoe is offline docjoe  Europe
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Thumbs up Celestion SL6S crossover.

Hello everybody there!

I' m looking for some plans from a Celestion SL 6S or Si crossover.

I have a pair of SL6 copperdomed speakers with fried domes.
and I own a pair of Celestion SL700 alu tweeters.

I'm wanting to rebuid the SL6 with the 700's tweeters.
But due to the increased efficiency and different beheaviour of the alu dome, I have to match the high pass section to the existing low pass.

can anybody help me with a schematic ?

I would immensely appreciate any return.
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Last edited by docjoe; 29th March 2011 at 03:37 PM. Reason: orthograph
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Old 31st March 2011, 11:20 AM   #2
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If they are compatible (the two tweeters) why don't you use a variable pad and translate the reference values to the fixed resistors, after you adjusted for the right attenuation.
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Old 31st March 2011, 04:26 PM   #3
docjoe is offline docjoe  Europe
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hello Inductor. thanks for you answer.
I know the method of padding down a tweeter...I just want to check if they modified the high pass as the alu tweeter may have different HF ringing modes beyond 20.000 as metal domes ususally do;
maybe the ingeneers at Celestion implemented a notch filter for HF peaks ...
just curiousity.
and comparison with the SL6 filter.

best regards
jo.
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Old 1st April 2011, 05:38 PM   #4
docjoe is offline docjoe  Europe
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really no one to help me ?
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Old 2nd April 2011, 02:40 AM   #5
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Ringing modes would be bad, and easy to check as you say, from looking at the xover, and not very pro. Why don't you post it.
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Old 18th December 2012, 09:50 AM   #6
hew128 is offline hew128  Singapore
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Any luck with the crossover schematic?
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Old 18th December 2012, 10:41 AM   #7
docjoe is offline docjoe  Europe
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No, but I've put the alu domes whitch matched well and padded down the output wit a resistive patch.
I finally got rid of the speakers, a friend of mine had them in his children's room and the children are happy with them.
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