Troubleshooting speaker showing mega-ohms of resistance?

[JimBanville]

With the capacitor in series I'd have expected an initial low resistance then rising as the capacitor is charged.
Very high resistance is probably open circuit and your body conducting if you have fingers on the meter probes.

Thanks. I was holding the rubber portion of the probes on my fluke dmm

 

[rayma]

It’s why the resting impedance is so very high when I’ve never run across that before and what the cause/reason might be, and would it be safe to connect to an amp to test further.

Some crossover designs do have a large series capacitor at the input, so you would expect an open circuit (or close to it)
when measuring resistance across the speaker box input terminals. Not only is this perfectly safe, but a design of this type
will protect the speaker should the amplifier fail with high DC voltage at its output.

 

[MarcelvdG]

Charles's proposal of post #9 is a simple and non-invasive test to check whether the loudspeaker has a big series capacitor or is really broken.

 

[AllenB]

I agree on the odd 9v battery result.

You may be looking at two things. Once you short the capacitor you can start over with your testing .

 

[JimBanville]

It should be an easy one to trace.

Why not link out the big cap and retest on your meter.

Success! I shorted that cap and the speaker cabinet terminals show a resting impedance of 6.8 ohms! That’s more like what I was expecting. Thanks! I learned something today

 

[JimBanville]

Sorry. Waited too late to wait to edit my previous post so I have to make this one to say I hooked them up and they sound great! Thanks everyone!