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PA system question - testing speakers

Posted on 2012-03-13
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Last Modified: 2013-01-05
Hi
Just throwing this one out there.
A customer just bought a new building with office and shop pa speakers, but no hardware except the speakers and wires running to them(hopefully).
How can i easily test which wires run to which speakers - perhaps put out some sound- without damaging the speakers?
I have common network IT tools handy, but no butt-set.
Thanks
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Question by:michcompsol
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6 Comments
 
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Expert Comment

by:disconnectedinyak
ID: 37716178
If you only have wires going to speakers and need to see which one goes where, you can use a small battery (like a 9-volt battery) to test and trace them. The battery also helps determine the polarity (which wire is ground) and etc.

A search on google "testing speakers with battery" returned a few results like:

Test a speaker with a 9 volt battery - Sound Speaker Repair

Testing a speaker with a 9 volt battery - YouTube



hope this helps
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Expert Comment

by:Dave Baldwin
ID: 37716185
I don't think your network tools will help on this.  If it's individual speakers like in a stereo system, just use a CD player with headphone output.  You will need an adapter to get only one channel.  If it is a 70-Volt distributed system, that idea will still work except that you will need more voltage to drive them.  In any case you start out at low or no volume and bring it up.  You won't hurt the speakers that way.
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Author Comment

by:michcompsol
ID: 37716941
Thanks for the suggestions
I planned on trying the 9-volt thing, but speakers are up to 300feet away from the server room and 55 feet in the air.
I grabbed a few wires and will try the headphone test, but first i plan on hooking up my old boom-box - external speaker attachment- and try this on low volume.  Better to kill an old unused boombox than a $$$ laptop.
I will update when possible.
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LVL 83

Expert Comment

by:Dave Baldwin
ID: 37717238
Boombox external speaker is a good choice.  Since they are that far away, you may have to turn it up a little to hear them.
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Accepted Solution

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michcompsol earned 0 total points
ID: 37785174
regular old toner worked just fine.  thank for the input.
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Author Closing Comment

by:michcompsol
ID: 38746491
fixed
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