I can't answer that. My room is small-medium (13x18x8) and I have the vp100. I have never heard the vp150. My guess is that with the vp150 you wouldn't be overpowered, but in a small room at normal listening volumes there might not be any noticable difference between the two.

Mark

"Shoot, a fella could have a pretty good weekend in Vegas with all that stuff"