@papafrog:
So is there universal agreement that given $x to spend, one should spend some of that on basic room treatment thereby getting better sound out of whatever speaker is chosen?
Nothing in audiophile land is universal, but the acousticians and my own experience says yes. You don’t have to think of this as a percentage, but room treatment makes rooms more speaker friendly, more bass and subwoofer friendly as well. Many 2-way speakers will sound much bigger with room treatment. So much so a 3-way or subwoofer may be less important.
Timbral balance, imaging, transparency and resolution all are enhanced by a good room. I can highly recommend GIK acoustic products regardless of the cost of the rest of the equipment.
But the point of this thread was, in my mind, a thought exercise, what if these are not options? What then?