3-way driver polarity

rabbitz · 19th February 2008, 10:46 AM

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?

jerome69 · 19th February 2008, 11:18 AM

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.

sreten · 19th February 2008, 11:27 AM

Hi,

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

/sreten.

Jay_WJ · 19th February 2008, 04:22 PM

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.

HiFiNutNut · 19th February 2008, 08:25 PM

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.

tinitus · 19th February 2008, 09:57 PM

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

19th February 2008, 10:46 AM	#1
rabbitz diyAudio Member Join Date: Jul 2003 Location: Newcastle, Australia	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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19th February 2008, 11:18 AM	#2
jerome69 diyAudio Member Join Date: Feb 2008 Location: Lyon	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.

19th February 2008, 11:27 AM	#3
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	Hi, Either way is the same, the only issue is absolute polarity. /sreten.

19th February 2008, 08:25 PM	#5
HiFiNutNut diyAudio Member Join Date: May 2004 Location: Sydney	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.

19th February 2008, 09:57 PM	#6
tinitus diyAudio Moderator Join Date: Nov 2005	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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