the reason why it dont run a ohm load is because of the resistor/capasitor xover inside of it blockin it from showin any ohm loads, none of my tweets like that have shown a ohm load, and do not affect an ohm load ona amp, i got a set of 4ohm kicker ks 6&1/2'' componits and coax and a set of q-power chrome tweets ran to a memphis pr150.2 and my ohm load is 2.2ohm so the tweets have no affect, and i think this is because when u run a comp set it aint runnin @ 2ohm but @ 4ohm because the coil is alot bigger on the mid than the tweet and alot smaller wire to go threw prolly why it dont show any form of ohm load, but on bigger tweets like bullets n what knot are alot more complex and hence why they show a ohm load, basicly a tweet works just like a woofer but there short on xmax, thats why they cant play below 2500htz i think due to to much movement, a tweeter does move but really fast, thats why theres more tech behind tweet magnets because theres not enulf movement to keep them cool
im not by any way an expert on anything but i kno a few things from pittling around here n there, and those cheap tweets are 4ohm but the risistor cancles it out due to how its intergrated, so its basicly there but does no change in ohm load, u can try hooking it up in with another speaker n checkin and still only read that one speakers ohm load
hope this helps