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Phase Check

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Old May 15, 2008 | 01:32 PM
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Default Phase Check

What is the best way to make sure all of my speakers are correctly phased ?
The Autosound #101 CD info sheet talks about using a Perfect Interface PD-1 Phase Detector.
I have not been able to find much info on this and it likely quite expensive.
Just want to know what you guys recommend.
Thanks
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Old May 15, 2008 | 01:51 PM
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using a 9volt battery. if its phased correctly the speaker will pop out
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Old May 15, 2008 | 02:01 PM
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Originally Posted by DPG
using a 9volt battery. if its phased correctly the speaker will pop out


Except you don't need a 9V to move most speakers, a high Xmax sub probably, but I'd use a standard AA for the others.
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Old May 15, 2008 | 02:33 PM
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Well, that will tell you if the wiring is in phase, but not if the speakers are in phase.

You can use a centered voice, and play each speaker pair individually, and make sure it sounds centralized and not 'all over the place.'
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Old May 15, 2008 | 02:37 PM
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Do I only need to check at the speaker.
Couldn't a speaker get out of phase through the electronics ?
All of the terminal connections have been checked, and I have no reason to think any are out of phase.
Well come to think of it, I am getting a pop from what seems to be comming from the RT midbass when I hit the ignition switch. This is more noticeable after sitting over night.
It is my understanding that an out of phase driver can wreak havoc in an otherwise great system.
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Old May 15, 2008 | 03:57 PM
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Crossover can effect it too.

But just because both sides are in electronic phase, that doesn't make it right by the time it hits your ears - hence my suggestion for a listening test.

I flipped my mid on the driver's side, then they sound in phase. When they are in electronic phase, it sounds like something is wrong.
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