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DCR refers to the DC resistance of a speaker's voice coil...

Do you mean output impedance?

  • Author

did research the amp is not where I need to look for DCR but I still could not find a formula to find the DCR. My bad about the amp part.

Just put a multimeter on the terminals, positive to positive and negative to negative. There should be a little marking on your meter with the Greek letter omega, that'll be the resistance setting, then adjust the scale accordingly if you don't have an autoranging meter.

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