earlier on dug out tweeters,did an ohms reading on them & they all came back with no reading on their own...
We had trouble figuring this out in 2003. The cap value is also weird at 1.5 uF. I think that works out to a crossover frequency above 20 kHz.
You can't really measure the impedance of the tweeter, but you can measure the voice coil resistance. In circuit, the impedance for a single driver can never be lower than the voice coil resistance of that driver.
Aerojon, if you try to measure the VCR using the speaker wire, you are leaving the crossover cap in the circuit. That small cap charges instantly and you get an infinite resistance reading. If you measure on the back of the tweeter, you will get a reading. My meter reads between 3.8 and 3.9 ohms.
With a set of speakers wired in parallel like a 3.5 woofer and a 1" tweeter like this, so little current flows through the tweeter that it has very minimal impact even if the combined impedance of the two speakers dips to 2 ohms during high frequency musical passages. The high current only flows during low frequency passages, and during those times the capacitor blocks flow through the tweeter.