If you read his title I think he can't decide whether he should get the vp100 and qs4 or the vp150 and qs8. Just so you know, I have m60s with a vp100 and qs8s. I've never been unhappy with the vp100 and I went with the qs8 to keep the drivers all 5 1/4. qs8s are not that big.
From what i know from researching mine, is that the vp150 is great at keeping the center soundstage in larger rooms because it acts more like a line array than a single point speaker like the vp100. Overall, sound quality on my vp100 is excelent. I sit 11 feet away.
