Thats the thing, I had mine crossed that low eventully. Before I got my ID oems, I had the VC100s crossed at 3000hz running active off my Orion, giving them a little break in time and to had a little "brightness" to my very then dull sounding front stage.
They had no issues with the power, and I would gladly give it to them again. I dropped the crossover point to 2.5hz (or as close as I could to that number as the memphis I was using for an active crossover, did have the exact cutoff points labeled.)
I got a pair now im not sure what im going to do with, wanted to go active again, but lately be looking to invest in some ID comps so dont know.
But really loved the VC100s, excellent budget tweeter IMO. Suprised you had the issues you were having with yours.