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Old 19th February 2008, 10:46 AM   #1
rabbitz is offline rabbitz  Australia
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Default 3-way driver polarity

I'm been playing with a 3-way and all modelling and actual tests show the mid driver as reversed polarity which is fine as it's a LR2 xo.

What I would like to know, would it be preferable to have the mid with normal polarity and the tweeter and woofer as reversed polarity which is exactly how another 3-way I have is run.

So I have 2 3-ways with different polarity arrangements.... which is the best in theory?
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Old 19th February 2008, 11:18 AM   #2
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I don't think it is really important. For me it's important to have a good phase between drivers and a good linear (or flat as possible) SPL level.
And it's depend on the topology of the filter.
For example a 12/12/18dB filter, it could be boomer normal polarity and midrange, tweeter reverse.
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Old 19th February 2008, 11:27 AM   #3
sreten is offline sreten  United Kingdom
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Hi,

Either way is the same, the only issue is absolute polarity.

/sreten.
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Old 19th February 2008, 04:22 PM   #4
Jay_WJ is offline Jay_WJ  United States
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Quote:
Originally posted by sreten
Hi,

Either way is the same, the only issue is absolute polarity.

/sreten.
I agree. The only issue I can think of is that if you reverse the woofer and tweeter polarity (essentially the same as you switch the polarity at your speaker or amp terminal), you can't mix your different 3-ways in a multi-ch setup. But even this can be easily solved by changing the polarity at speaker terminals.
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Old 19th February 2008, 08:25 PM   #5
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Is absolute polarity audible? some people say yes and some people say no. There has not been a conclusion. One day when I complete my system I will use some best recordings like those from IsoMike to have a test. But before that, the search (for the answer) will go on.
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Old 19th February 2008, 09:57 PM   #6
tinitus is offline tinitus  Europe
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Its audible if you make AB test with a remote switch... problem is that its not the same on all recordings

But we quickly get used to many odd things...if you dont listen fore it you wont hear it
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