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Thread: N220 crossover - how to check for faulty components?

  1. #1
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    Question N220 crossover - how to check for faulty components?

    Got my L220 home, they come off a single owner who didn't use them since long, I already ordered the foam for the passive radiators, now I need to figure why sound out one of the two speakers is noticeably lower so I would take the crossover out and test what I can with my simple digital multimeter, what should I check and how?

    Grazie

  2. #2
    Senior Member RMC's Avatar
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    Hi Giovanni,

    There's not a whole lot you can measure with a simple multimeter here, probably just resistance. Its unlikely to have capacitance and inductance measurement capability.

    RE "figure why sound out one of the two speakers is noticeably lower"

    First you can check SYSTEM dc resistance at the input terminals of each cabinet, this would tell you if both speakers are the same DCR value. This might give a clue.

    Then I would try to measure the DC resistance of each driver in each box just to see if there are DCR discrepancies among identical drivers from the two boxes. This may also give a clue if one is defective.

    Finally, you can do continuity tests at various places on the crossover and check resistor values. That's about it, but it could still show something is wrong. Regards,

    Richard

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