Avatar of michcompsol
michcompsol
 asked on

PA system question - testing speakers

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
Components

Avatar of undefined
Last Comment
michcompsol

8/22/2022 - Mon
disconnectedinyak

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
Dave Baldwin

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.
michcompsol

ASKER
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.
This is the best money I have ever spent. I cannot not tell you how many times these folks have saved my bacon. I learn so much from the contributors.
rwheeler23
Dave Baldwin

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.
ASKER CERTIFIED SOLUTION
michcompsol

THIS SOLUTION ONLY AVAILABLE TO MEMBERS.
View this solution by signing up for a free trial.
Members can start a 7-Day free trial and enjoy unlimited access to the platform.
See Pricing Options
Start Free Trial
GET A PERSONALIZED SOLUTION
Ask your own question & get feedback from real experts
Find out why thousands trust the EE community with their toughest problems.
michcompsol

ASKER
fixed