Test speaker OHM, only with a multimeter?

[liquidice]

I have fought with JBL for months about finding out the Ohm rating of my JBL Control-1 monitors, and they can never give me a straight answer. Don't bother looking my speakers up, because I've done it all, and the ratings are all over the place, and plus my L/R are Control-1's that I won in a contest years ago working in a pro-audio store, and no one can tell me what series they are. So with that disclaimer, I'm wondering if there is anyway to test my speaker ohm by perhaps plugging them into some sort of machine? JBL told me to take the speaker apart and test at the positive and negative contacts on the woofer itself. Hard part is, to take these things apart, you need a pile of tools and a heat gun to loosen glued together parts. Testing at the terminal on the back gave me wierd readings....sometimes no reading at all. I really don't get it. Would testing through the terminal which goes through a x-over mess it up anyways? Feedback would be great...I'm afraid I'm going damage to my receiver. They are either 4 or 8 ohm, that's as much as I know...which isn't crap obviously. Thanks.