That's odd..
Bose haters always tell me either "All highs, all lows must be Bose" or "No Highs, no lows must be Bose".. funny, if they really knew what they are talking about, they would be at least consistent.
Please, JC, don't take that as a shot at you, just my experience (as an employee of Bose) I mention the same phenomina as i just told you and they usually mumble something under their breath as they reach for their credit card....
Bose goes for a much different sound than other companies. More spacious, less direct and in you face. Most manufacturers accentuate certain frequencies that are easily liked, but in the long run they just cause listener's fatigue. It's not till you get to speakers costing 2-10 times as much that you get that same natural sound.
Bose speakers are good reference speakers since so many people have them in their homes, I use both the Lifestyle 12 (which uses the Acoustimass Cubes and a powered Acoustimass Module in a 5.1 setup) and the 301 IV Bookshelf speakers, but I would never mix on them. It's like trying to use a sports car to haul your boat when you should be using an SUV. Two different purposes.