In reply to:
My wife usually asks me to lower the volume when she's in the room and "tells me she's getting a headache."
I am running m60's in my stereo only no sub system. Obviously 100% music listening. I love them at high and low volumn levels. It never fails that when the wife is out of the house the volumn creeps up pretty high. She "always" makes a negative comment when she comes in. I usually turn it down before she comes in if I hear the car pulling in. When I don't, it is not long before she tells me she has a headache. If you are looking for speakers that won't give wives a headache at loud volumns your choices will be few and far between.
Most women just don't like music played as loudly as men do.
Get yourself a pair of high quality head phones and have the best of both worlds.
oz