In reply to:

In a large room, the M60 will sound better than the M22's.



Why?
Because they play louder?
The quality of sound itself has not changed, only volume (removing the extra bass extension from the equation here).
In reply to:

Is that not an upgrade?



More volume can be considered an upgrade certainly, but the connotation of using the word makes it sound like the M60 is superior in overall quality from the M22 and to that i disagree especially if that difference is only in regards to volume level.

More to my main thought, for a small room, ppl may tell someone that the M60s are really too big for such a space but the word "downgrade" to describe the choice of M22 over M60 is never used.



"Those who preach the myths of audio are ignorant of truth."