Regarding mint604's assessment of acoustic suspension designs; a certain person with the last name of Dunlavy happened to design some of the best sounding speakers of the era that are still holding there own this very minute. I wish I had some Dunlavy's, like the SC-IV, SC-V or SC-VI. Dunlavy would disagree with your hypothesis, as do I.
Listening Fatigue
What do you guys think contributes more to listening fatigue. Volume, or the type of electronics or speaker you have? thanks