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Old 6th March 2012, 09:55 PM   #1
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Default Problem with a speakers impedance

Could someone please tell me why the impedance of a speaker as measured
by a digital multimeter is 4 to 5 ohms but if i just hit the side of the speaker
with my palm the resistance drops to 0,1 ohms.Is this normal ?
The speaker is a three way Fj forte piano.
I measured another speaker to 6-7 ohms and if i move the woofer cone
with my hand the resistance rises.
Is there an odd behavior around the crossover section that doesn't tolerate
any shock ?
I must say that a krell connected to the fj's had two fuses burned.
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Old 6th March 2012, 10:06 PM   #2
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My guess... a coil moving in a magnetic field produces a current which may either add or subtract from the current from the DMM.
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Old 6th March 2012, 10:11 PM   #3
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Thanks for the reply.
Well obviously this is normal but a resistance of just 0,1 ohm is a short circuit
and the krell agreed.
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