I am using Infinity Emits crossed over at 16khz... the effect is almost subliminal. Just the right amount of air and upper harmonics. The GAS 500 Ampzilla didn't feel a thing.
Add on supertweeters hard on amp?
I have a 400xi driving my Krell Res 2 speakers and I would like to experiment with a pair of 4ohm supertweeters. Will this tax my amp to much or is it a benign load?