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Ohms


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2 replies to this topic

#1 of 3 OFFLINE   David Dunn

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Posted June 29 2012 - 12:54 PM

Why do my 4 ohm subs only read 1.5 ohms on the meter?

#2 of 3 OFFLINE   Al.Anderson

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Posted June 29 2012 - 09:00 PM

I'm not an expert, but I'll go with the basics - impedance varies by frequency; when a manufacturer states 4 ohms it's an average over all frequencies. Also, if you're just putting a meter across the terminals you're measuring DC resistance, which is not the same as AC impedance, which is what the speaker manufacturer is reporting.

#3 of 3 OFFLINE   Robert_J

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Posted June 30 2012 - 02:46 AM

Are they dual voice coils? If so, how are they wired? What subs are they?




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