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Planar Speaker Asylum Welcome! Need support, you got it. Or share your ideas and experiences. |
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In Reply to: RE: Measurements - probably not, mate! Could nae be bothered :-)) ... posted by Dawnrazor on March 20, 2012 at 17:27:23:
My only experience with this comes from simulating many (certainly scores ... and maybe over 100) Maggie XOs in lspCAD.
I have found that the "normal" situation with 6dB XOs is that the drivers need to be connected with the same polarity (and this is what I see as the big advantage with 1st order slopes ... which outweighs the problems associated with increased driver overlap. etc) - otherwise a big hole opens up at the XO point.
But every now and again, I found that a particular combination of LP & HP roll-off points required the tweeter to be flipped, to get rid of the hole.
So have no idea what causes this behaviour - simply that it happens. Maybe Davey could give you a more technical expose?
Regards,
Andy
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Follow Ups
- "I thought you had to reverse the polarity even on the 1st order slopes"??? ... - andyr 17:35:53 03/20/12 (1)
- RE: "I thought you had to reverse the polarity even on the 1st order slopes"??? ... - neolith 06:01:55 03/22/12 (0)
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