>>So from that test, guess I have spent a lot more for speakers than needed. LOL
Trust me, you wouldn't have said that if you tested at 120 dB
When I was running M2 mains with the SVS sub in a small listening area (one end of a 13x23 room) the results were as good as anything I have heard. I don't think the M2s gave anything up to the larger speakers.
As you stood/sat further back, though, you couldn't play at the volumes you wanted. Getting a "wall of sound" on music CDs was out of the question. That's where the bigger speakers (ie more drivers) really start to shine. With a 28 x 28 room and 115-125 dB music SPL I think you need all the drivers you can get
