Originally Posted by sumbadhatharry
Hello all, I recently went and bought a 22 range multimeter to try to get some impedance readings on my speakers just to make sure everything is working right and I am having some trouble. I have the omd-15/1/5 speakers and the only one I was able to get a reading on is the 15. Granted I was measuring from the speaker wire running to the speaker and not the speaker terminals themselves inside the cabinet. I am thinking that this is only working because of the 4 post that separate the woofer and the tweeter while the others are not separate ?
With the 15s I just undid the banana plug sleeve and touched the probes to the screws holding the wire and I had my 4 ohm reading right away which makes sense because the speakers should be 6 ohm . That doesn't work with the other speakers , I get 0 reading or like 1.5867 m ohm when trying to measure from the post themselves . Any idea how to measure the other speakers without removing them from the cabinet which I can't / won't do?
A multimeter measures DC resistance
, which is not the same as the AC impedance
of a speaker. (Among other things, a speaker's actual impedance varies with the frequency of the signal.)
But the larger question is why are you trying to measure this at all? Mirage provides "nominal" impedance specifications for the OMD speakers.
OMD-15: 6 Ohms Nominal / 4 Ohms Minimum
OMD-C1: 6 Ohms Nominal / 4 Ohms Minimum
OMD-5: 6 Ohms Nominal / 4 Ohms Minimum