I do like the first paragraph of that, DUP

"Audio is an industry that is unfortunately burdened with a lot of ideas and beliefs that are not based on physical facts. Our business is complicated enough without adding the confusion of half-truths and folklore

Nice paper actually

That's a very interesting White Paper. In many cases, the listener's room is left out and is an afterthought!

i think a well set up room can make an average speaker sound good and a good speaker sound great. i purchased a pair of very good speakers from my dealer. these sounded very smooth and detailed in his demo room with wallboard walls and hanging fabric room treatment and some bass tubes. the bass was nicely defined. when i took them home to my much larger, plaster wall room with large brick fireplace and glass fronted cabinets that cover an entire wall, i lost most of the bass quantity and a great deal of the quality. also, the upper range was shrill. i have been working on the room in increments ever since and the reason why i bought those speakers is starting to reemerge. there is a huge amount of bass in the corners and behind the speakers, but little at the listening chair. if i added a sub, it would fix the symptom, but not the underlying problem, the room. i think i could easily spend what the speakers cost getting the room right. i am having fun working this out, but most people probably prefer a quick out of a box fix.
i agree that most consumers probably never think of the room.

tom collins