what bad polarity can do?
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=112174
Printed Date: May 17, 2024 at 3:19 AM
Topic: what bad polarity can do?
Posted By: sublinux
Subject: what bad polarity can do?
Date Posted: March 07, 2009 at 12:01 PM
What bad polarity can do? How do you know when polarity is bad? What is the symptom?
Replies:
Posted By: haemphyst
Date Posted: March 07, 2009 at 12:37 PM
Polarity? Do you mean connecting the negative terminal of an amplifier to the positive terminal of the speaker? Nothing will happen. The speaker will work as designed. With one speaker, you won't be able to hear incorrect polarity, but with two, there will be a distinct loss of (in the case of multiple subwoofers) bass and focality (in the case of full-range speakers). If both are wired "out of phase" it, again, will be inaudible.
Now, if you mean "polarity" as in connecting a POWER SOURCE like a battery backwards, you COULD completely destroy the device being POWERED, like a deck or amplifier, if the safety devices (i.e. fuses) are bypassed, removed, or over-rated.
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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Posted By: sublinux
Date Posted: March 08, 2009 at 12:24 AM
Well, i was talking about speaker.. so if in my car rear speaker (Both 6x9) one got a good polarity and the other have a bad one the sound will be "lazy" ?
Posted By: forbidden
Date Posted: March 08, 2009 at 12:53 AM
No, it causes one speaker to move in the opposite direction. This primarily shows itself as a loss of bass response. If you are unsure of it, try reversing the leads on one speaker and listening to it, then reverse it back again.
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Top Secret, I can tell you but then my wife will kill me.
Posted By: i am an idiot
Date Posted: March 08, 2009 at 9:26 AM
The easiest way to check for proper phasing is to balance to left and then balance to right. If there is bass when either speaker is playing alone, and no bass when balance is in center, one of them does not have proper polarity. You must turn off all other speakers in the vehicle to properly perform the above procedure.
Posted By: sublinux
Date Posted: March 08, 2009 at 4:27 PM
Thanks! I just fix my front speakers!
Posted By: KarTuneMan
Date Posted: March 08, 2009 at 8:34 PM
sublinux wrote:
Thanks! I just fix my front speakers!
what about the rears??? -------------
Posted By: sublinux
Date Posted: March 09, 2009 at 9:31 AM
The rears was alerdy good :P Now i got bass from the front WOOT!
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