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post #1 of 8 Old 06-25-2012, 05:42 PM Thread Starter
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Home stereo help

Ok, so I ran the speaker wires for my surround through the walls, but just realized that there's no way to tell which is positive and negative. How do I decipher?

What will happen if I just run a speaker and it happens to be backward? IIRC, it should still play, but it'll be out of phase, right?

Will that damage anything? Will I be able to tell a noticeable difference if I switch the wires back and forth?


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post #2 of 8 Old 06-25-2012, 05:50 PM
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Usually even shitty cable has a shape difference in the jacket. I.e; one side is round and the other side is ribbed. If not, a 9v or AA battery can help you along with a DMM... It will not hurt anything to be out of phase, just sounds like shit...

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post #3 of 8 Old 06-25-2012, 05:55 PM Thread Starter
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Usually even shitty cable has a shape difference in the jacket. I.e; one side is round and the other side is ribbed. If not, a 9v or AA battery can help you along with a DMM... It will not hurt anything to be out of phase, just sounds like shit...
DMM?


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post #4 of 8 Old 06-25-2012, 06:03 PM
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DMM?
Digital multimeter

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post #5 of 8 Old 06-25-2012, 06:05 PM
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Originally Posted by jeeperjkj View Post
Ok, so I ran the speaker wires for my surround through the walls, but just realized that there's no way to tell which is positive and negative. How do I decipher?

What will happen if I just run a speaker and it happens to be backward? IIRC, it should still play, but it'll be out of phase, right?

Will that damage anything? Will I be able to tell a noticeable difference if I switch the wires back and forth?
Technically the speakers will be out of phase. Not the end of the world but, try and see if you can figure which side is which by looking for ribs or a colored line on the jacket.

I am an Audio Engineer so feel free to send me a PM if you have any other questions.

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post #6 of 8 Old 06-25-2012, 06:06 PM Thread Starter
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Ok, I knew that, but brain farted. How will a 9v or AA battery help?


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post #7 of 8 Old 06-25-2012, 06:54 PM
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Ok, I knew that, but brain farted. How will a 9v or AA battery help?
"Wire" one end to the battery and check the other end w ur meter

Is this thing on?

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post #8 of 8 Old 06-25-2012, 08:14 PM
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"Wire" one end to the battery and check the other end w ur meter

Is this thing on?
Thank you.

Yep. You can use the polarity value on the meter to determine which wire is which.

Quote:
Originally Posted by braindead0 View Post
Some folks are fine with being screwed over, perhaps finding confrontation to be more stressful than just living with whatever the problem is. These are excellent consumers, manufactured to the finest specifications.
Reformed Jeep addict... Jeepless for now.
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