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re: Car Audio - amp outputs polarity?
Posted on 5/7/23 at 9:00 am to jyoung1
Posted on 5/7/23 at 9:00 am to jyoung1
Easy way to check polarity - touch a 9V battery to the speaker wires. Make sure all speakers push in or out the same direction when connected to the battery +/- terminals. (also very handy to identify speaker wires if you have a big jumble of them)
The amp output is AC, your readings with a DMM will not mean much at all, as it is not fast enough to catch the rapid changes in frequency / amplitude. If you have an oscilloscope you could see it.
Rock on!
The amp output is AC, your readings with a DMM will not mean much at all, as it is not fast enough to catch the rapid changes in frequency / amplitude. If you have an oscilloscope you could see it.
Rock on!
2
Posted on 5/7/23 at 9:21 am to Geauxkart
quote:
If you have an oscilloscope you could see it.
Scope is the way to go but it's an expensive toy to have just hanging around
Posted on 5/7/23 at 12:15 pm to Geauxkart
Like I said, they are negative, I don’t understand why tho.
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