i find it somewhat surprising that they seem as bright as you say, with the two tweeters in my m80's i have never once found them to be too bright and certainly never made any songs un listenable.

Perhaps you can have axiom send you those tweeter resistors to try to tone down their high freq output.

Alhough most people enjoy their speakers some dont, you can always sell them and buy something with a more mellow sound like PSB or rockets