Who knows how to check speaker wire polarity?
Ladies and gents, I'm in the middle of changing out TVs, both front and rear on our '04 Itasca Horizon 36GD with the C-7 330HP CAT. Now, a small amount of history here. Winne and Itasca, in that era...
Forum Discussion
oldmattb is correct. If you can't trace the wire end to end, this is all you can do. As mentioned before, the speaker is getting an AC signal, so it does not matter if the polarity is correct or backwards, what DOES matter is the two speakers are wired in phase with each other. If wired out of phase, you will be able to tell pretty quickly, the bass will be almost non existent wired out of phase.
Another post mentioned putting on something with a bass beat, when the bass hits the cone's first movement should be out, you should be able to see it or lightly feel it with your finger. But again, as long as they are in phase it is not important
You are correct in that the battery test only determines polarity of the speaker itself if not marked.
The only instrument you could actually use to measure the correct or reversed polarity with would be an oscilloscope.
Another post mentioned putting on something with a bass beat, when the bass hits the cone's first movement should be out, you should be able to see it or lightly feel it with your finger. But again, as long as they are in phase it is not important
You are correct in that the battery test only determines polarity of the speaker itself if not marked.
The only instrument you could actually use to measure the correct or reversed polarity with would be an oscilloscope.
