[William Sommerwerck]

No matter how much you spend on equipment, you will
never hear the detail that is in the recordings if your room
is not acoustically optimized.

This is a misleading statement -- its opposite (or contrapositive) is not
true -- good room acoustics do not guarantee the audibility of detail if the
electronics and speakers don't deliver it. Ideally, you want both good (that
is, appropriate for playback) acoustics, and good equipment.