
Take a Dmm and put it on the ohms section for mine its 200. Touch the probes (pos and neg) together to see what it reads because of the resistance of the dmm. Mine reads .4ohms
Next, wire up your sub (pos probe to pos of the sub) and (neg probe to the negative of the sub) Dont laugh at this sub either its my old one //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif
As you can see this read 1.3ohms on the dmm NOW subtract the .4 from earlier to the 1.3ohms from the sub and it is a .9ohm voice coil.
Originally is was dual 1ohms but after break in and all that stuff it is now a dual .9ohm subwoofer
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